Niranjan Govind (N Govind, Niri Govind)

Scopus Author ID ORCID

Publication Activity (10 Years)

Years Active: 2018-2024
Publications (10 Years): 58

Top Venues

Journal of chemical theory and computation

The journal of physical chemistry letters

The journal of physical chemistry. A

The Journal of chemical physics

Pacific Northwest National Laboratory

This page only lists publications with an associated author ORCID identifier.

Affiliation History

Pacific Northwest National Laboratory Apr 01 2020

United States

Scientist :: Physical and Computational Sciences Directorate

Pacific Northwest National Laboratory Apr 09 2007 - Mar 31 2020

United States

Scientist :: Environmental Molecular Sciences Laboratory

Publications

Nam Vu, Daniel Mejía-Rodríguez, Nicholas P Bauman, Ajay Panyala, Erdal Mutlu, Niranjan Govind, Jonathan J Foley
Cavity Quantum Electrodynamics Complete Active Space Configuration Interaction Theory. Journal of chemical theory and computation 20 (3) (2024)
Nam Vu, Daniel Mejía-Rodríguez, Nicholas P Bauman, Ajay Panyala, Erdal Mutlu, Niranjan Govind, Jonathan J Foley
Cavity Quantum Electrodynamics Complete Active Space Configuration Interaction Theory. Journal of chemical theory and computation 20 (3) (2024)
Nam Vu, Daniel Mejía-Rodríguez, Nicholas P Bauman, Ajay Panyala, Erdal Mutlu, Niranjan Govind, Jonathan J Foley
Cavity Quantum Electrodynamics Complete Active Space Configuration Interaction Theory. Journal of chemical theory and computation (2024)
Alessandro Loreti, Victor Manuel Freixas, Davide Avagliano, Francesco Segatta, Huajing Song, Sergei Tretiak, Shaul Mukamel, Marco Garavelli, Niranjan Govind, Artur Nenov
WFOT: A Wave Function Overlap Tool between Single- and Multi-Reference Electronic Structure Methods for Spectroscopy Simulation. Journal of chemical theory and computation (2024)
Nam Vu, Daniel Mejía-Rodríguez, Nicholas P Bauman, Ajay Panyala, Erdal Mutlu, Niranjan Govind, Jonathan J Foley
Cavity Quantum Electrodynamics Complete Active Space Configuration Interaction Theory. Journal of chemical theory and computation 20 (3) (2024)
Alessandro Loreti, Victor Manuel Freixas, Davide Avagliano, Francesco Segatta, Huajing Song, Sergei Tretiak, Shaul Mukamel, Marco Garavelli, Niranjan Govind, Artur Nenov
WFOT: A Wave Function Overlap Tool between Single- and Multi-Reference Electronic Structure Methods for Spectroscopy Simulation. Journal of chemical theory and computation 20 (11) (2024)
Diwash Dhakal, Darren M Driscoll, Niranjan Govind, Andrew G Stack, Nikhil Rampal, Gregory Schenter, Christopher J Mundy, Timothy T Fister, John L Fulton, Mahalingam Balasubramanian, Gerald T Seidler
The evolution of solvation symmetry and composition in Zn halide aqueous solutions from dilute to extreme concentrations. Physical chemistry chemical physics : PCCP (2023)
Robert B Weakly, Chelsea E Liekhus-Schmaltz, Benjamin I Poulter, Elisa Biasin, Roberto Alonso Mori, Andrew L Aquila, Sébastien Boutet, Franklin D Fuller, Phay J Ho, Thomas Kroll, Caroline M Loe, Alberto A Lutman, Diling Zhu, Uwe Bergmann, Robert W Schoenlein, Niranjan Govind, Munira Khalil
Revealing core-valence interactions in solution with femtosecond X-ray pump X-ray probe spectroscopy. Nature communications 14 (1) (2023)
Victor Manuel Freixas, Jérémy R Rouxel, Yeonsig Nam, Sergei Tretiak, Niranjan Govind, Shaul Mukamel
X-ray and Optical Circular Dichroism as Local and Global Ultrafast Chiral Probes of [12]Helicene Racemization. Journal of the American Chemical Society (2023)
Rosa Di Felice, Maricris L Mayes, Ryan M Richard, David B Williams-Young, Garnet Kin-Lic Chan, Wibe A de Jong, Niranjan Govind, Martin Head-Gordon, Matthew R Hermes, Karol Kowalski, Xiaosong Li, Hans Lischka, Karl T Mueller, Erdal Mutlu, Anders M N Niklasson, Mark R Pederson, Bo Peng, Ron Shepard, Edward F Valeev, Mark van Schilfgaarde, Bess Vlaisavljevich, Theresa L Windus, Sotiris S Xantheas, Xing Zhang, Paul M Zimmerman
A Perspective on Sustainable Computational Chemistry Software Development and Integration. Journal of chemical theory and computation (2023)
Shashank G Mehendale, Bo Peng, Niranjan Govind, Yuri Alexeev
Exploring Parameter Redundancy in the Unitary Coupled-Cluster Ansätze for Hybrid Variational Quantum Computing. The journal of physical chemistry. A (2023)
Soumen Ghosh, Shaul Mukamel, Niranjan Govind
A Combined Wave Function and Density Functional Approach for K-Edge X-ray Absorption Near-Edge Spectroscopy: A Case Study of Hydrated First-Row Transition Metal Ions. The journal of physical chemistry letters (2023)
Benjamin I Poulter, Elisa Biasin, Stanisław H Nowak, Thomas Kroll, Roberto Alonso Mori, Robert W Schoenlein, Niranjan Govind, Dimosthenis Sokaras, Munira Khalil
Uncovering the 3d and 4d Electronic Interactions in Solvated Ru Complexes with 2p3d Resonant Inelastic X-ray Scattering. Inorganic chemistry (2023)
Sung Min Kim, Mal-Soon Lee, Donald M Camaioni, Oliver Y Gutiérrez, Vassiliki-Alexandra Glezakou, Niranjan Govind, Thomas Huthwelker, Ruixue Zhao, Roger Rousseau, John L Fulton, Johannes A Lercher
Self-Organization of 1-Propanol at H-ZSM-5 Brønsted Acid Sites. JACS Au 3 (9) (2023)
Giacomo Prampolini, Amity Andersen, Benjamin I Poulter, Munira Khalil, Niranjan Govind, Elisa Biasin, Mariachiara Pastore
Integrated Quantum-Classical Protocol for the Realistic Description of Solvated Multinuclear Mixed-Valence Transition-Metal Complexes and Their Solvatochromic Properties. Journal of chemical theory and computation (2023)
Daniel Mejía-Rodríguez, Alexander A Kunitsa, John L Fulton, Edoardo Apra, Niranjan Govind
G 0 W 0 Ionization Potentials of First-Row Transition Metal Aqua Ions. The journal of physical chemistry. A (2023)
Daniel Mejía-Rodríguez, Edoardo Apra, Jochen Autschbach, Nicholas P Bauman, Eric J Bylaska, Niranjan Govind, Jeff R Hammond, Karol Kowalski, Alexander Kunitsa, Ajay Panyala, Bo Peng, John J Rehr, Huajing Song, Sergei Tretiak, Marat Valiev, Fernando D Vila
NWChem: Recent and Ongoing Developments. Journal of chemical theory and computation (2023)
Yeonsig Nam, Daeheum Cho, Bing Gu, Jérémy R Rouxel, Daniel Keefer, Niranjan Govind, Shaul Mukamel
Time-Evolving Chirality Loss in Molecular Photodissociation Monitored by X-ray Circular Dichroism Spectroscopy. Journal of the American Chemical Society 144 (44) (2022)
Chelsea Liekhus-Schmaltz, Zachary W Fox, Amity Andersen, Kasper S Kjaer, Roberto Alonso-Mori, Elisa Biasin, Julia Carlstad, Matthieu Chollet, James D Gaynor, James M Glownia, Kiryong Hong, Thomas Kroll, Jae Hyuk Lee, Benjamin I Poulter, Marco Reinhard, Dimosthenis Sokaras, Yu Zhang, Gilles Doumy, Anne-Marie March, Stephen H Southworth, Shaul Mukamel, Amy A Cordones, Robert W Schoenlein, Niranjan Govind, Munira Khalil
Femtosecond X-ray Spectroscopy Directly Quantifies Transient Excited-State Mixed Valency. The journal of physical chemistry letters 13 (1) (2022)
Samantha Tetef, Vikram Kashyap, William M Holden, Alexandra Velian, Niranjan Govind, Gerald T Seidler
Informed Chemical Classification of Organophosphorus Compounds via Unsupervised Machine Learning of X-ray Absorption Spectroscopy and X-ray Emission Spectroscopy. The journal of physical chemistry. A 126 (29) (2022)
Soumen Ghosh, Harsh Agarwal, Mirza Galib, Ba L Tran, Mahalingam Balasubramanian, Nirala Singh, John L Fulton, Niranjan Govind
Near-Quantitative Predictions of the First-Shell Coordination Structure of Hydrated First-Row Transition Metal Ions Using K-Edge X-ray Absorption Near-Edge Spectroscopy. The journal of physical chemistry letters 13 (27) (2022)
Daniel R Nascimento, Niranjan Govind
Computational approaches for XANES, VtC-XES, and RIXS using linear-response time-dependent density functional theory based methods. Physical chemistry chemical physics : PCCP 24 (24) (2022)
Daniel Mejía-Rodríguez, Alexander Kunitsa, Edoardo Apra, Niranjan Govind
Basis Set Selection for Molecular Core-Level GW Calculations. Journal of chemical theory and computation 18 (8) (2022)
Darren M Driscoll, Richard C Shiery, Nicolas D'Annunzio, Daria Boglaienko, Mahalingam Balasubramanian, Tatiana G Levitskaia, Carolyn I Pearce, Niranjan Govind, David C Cantu, John L Fulton
Water Defect Stabilizes the Bi 3+ Lone-Pair Electronic State Leading to an Unusual Aqueous Hydration Structure. Inorganic chemistry 61 (38) (2022)
Elizabeth H Denis, Jessica L Bade, Ryan R Renslow, Kelsey A Morrison, Megan K Nims, Niranjan Govind, Robert G Ewing
Proton Affinity Values of Fentanyl and Fentanyl Analogues Pertinent to Ambient Ionization and Detection. Journal of the American Society for Mass Spectrometry 33 (3) (2022)
Georgia Prokopiou, Michal Hartstein, Niranjan Govind, Leeor Kronik
Optimal Tuning Perspective of Range-Separated Double Hybrid Functionals. Journal of chemical theory and computation 18 (4) (2022)
Peng Lian, Zhongyu Mou, Connor J Cooper, Ryne C Johnston, Scott C Brooks, Baohua Gu, Niranjan Govind, Sofi Jonsson, Jerry M Parks
Mechanistic Investigation of Dimethylmercury Formation Mediated by a Sulfide Mineral Surface. The journal of physical chemistry. A 125 (24) (2021)
Samantha Tetef, Niranjan Govind, Gerald T Seidler
Unsupervised machine learning for unbiased chemical classification in X-ray absorption spectroscopy and X-ray emission spectroscopy. Physical chemistry chemical physics : PCCP 23 (41) (2021)
Elisa Biasin, Zachary W Fox, Amity Andersen, Kathryn Ledbetter, Kasper S Kjær, Roberto Alonso Mori, Julia M Carlstad, Matthieu Chollet, James D Gaynor, James M Glownia, Kiryong Hong, Thomas Kroll, Jae Hyuk Lee, Chelsea Liekhus-Schmaltz, Marco E Reinhard, Dimosthenis Sokaras, Yu Zhang, Gilles Doumy, Anne Marie March, Stephen H Southworth, Shaul Mukamel, Kelly J Gaffney, Robert W Schoenlein, Niranjan Govind, Amy A Cordones, Munira Khalil
Direct observation of coherent femtosecond solvent reorganization coupled to intramolecular electron transfer. Nature chemistry 13 (4) (2021)
Francesco Segatta, Mattia Russo, Daniel R Nascimento, Davide Presti, Francesco Rigodanza, Artur Nenov, Andrea Bonvicini, Alberto Arcioni, Shaul Mukamel, Margherita Maiuri, Luca Muccioli, Niranjan Govind, Giulio Cerullo, Marco Garavelli
In Silico Ultrafast Nonlinear Spectroscopy Meets Experiments: The Case of Perylene Bisimide Dye. Journal of chemical theory and computation 17 (11) (2021)
Jonathan M Waldrop, Theresa L Windus, Niranjan Govind
Projector-Based Quantum Embedding for Molecular Systems: An Investigation of Three Partitioning Approaches. The journal of physical chemistry. A 125 (29) (2021)
Daniel R Nascimento, Elisa Biasin, Benjamin I Poulter, Munira Khalil, Dimosthenis Sokaras, Niranjan Govind
Resonant Inelastic X-ray Scattering Calculations of Transition Metal Complexes Within a Simplified Time-Dependent Density Functional Theory Framework. Journal of chemical theory and computation 17 (5) (2021)
Bing Gu, Stefano M Cavaletto, Daniel R Nascimento, Munira Khalil, Niranjan Govind, Shaul Mukamel
Manipulating valence and core electronic excitations of a transition-metal complex using UV/Vis and X-ray cavities. Chemical science 12 (23) (2021)
Elisa Biasin, Daniel R Nascimento, Benjamin I Poulter, Baxter Abraham, Kristjan Kunnus, Angel T Garcia-Esparza, Stanislaw H Nowak, Thomas Kroll, Robert W Schoenlein, Roberto Alonso-Mori, Munira Khalil, Niranjan Govind, Dimosthenis Sokaras
Revealing the bonding of solvated Ru complexes with valence-to-core resonant inelastic X-ray scattering. Chemical science 12 (10) (2021)
Insu Lee, Mal-Soon Lee, Lei Tao, Takaaki Ikuno, Rachit Khare, Andreas Jentys, Thomas Huthwelker, Camelia N Borca, Aleksandr Kalinko, Oliver Y Gutiérrez, Niranjan Govind, John L Fulton, Jian Zhi Hu, Vassiliki-Alexandra Glezakou, Roger Rousseau, Maricruz Sanchez-Sanchez, Johannes A Lercher
Activity of Cu-Al-Oxo Extra-Framework Clusters for Selective Methane Oxidation on Cu-Exchanged Zeolites. JACS Au 1 (9) (2021)
Daniel Mejía-Rodríguez, Alexander Kunitsa, Edoardo Apra, Niranjan Govind
Scalable Molecular GW Calculations: Valence and Core Spectra. Journal of chemical theory and computation (2021)
Huajing Song, Victor Manuel Freixas, Sebastian Fernandez-Alberti, Alexander J White, Yu Zhang, Shaul Mukamel, Niranjan Govind, Sergei Tretiak
An Ab Initio Multiple Cloning Method for Non-Adiabatic Excited-State Molecular Dynamics in NWChem. Journal of chemical theory and computation 17 (6) (2021)
Caroline M Loe, Chelsea Liekhus-Schmaltz, Niranjan Govind, Munira Khalil
Spectral Signatures of Ultrafast Excited-State Intramolecular Proton Transfer from Computational Multi-edge Transient X-ray Absorption Spectroscopy. The journal of physical chemistry letters 12 (40) (2021)
Elisa Biasin, Zachary W Fox, Amity Andersen, Kathryn Ledbetter, Kasper S Kjær, Roberto Alonso Mori, Julia M Carlstad, Matthieu Chollet, James D Gaynor, James M Glownia, Kiryong Hong, Thomas Kroll, Jae Hyuk Lee, Chelsea Liekhus-Schmaltz, Marco E Reinhard, Dimosthenis Sokaras, Yu Zhang, Gilles Doumy, Anne Marie March, Stephen H Southworth, Shaul Mukamel, Kelly J Gaffney, Robert W Schoenlein, Niranjan Govind, Amy A Cordones, Munira Khalil
Author Correction: Direct observation of coherent femtosecond solvent reorganization coupled to intramolecular electron transfer. Nature chemistry (2021)
Francesco Segatta, Artur Nenov, Daniel R Nascimento, Niranjan Govind, Shaul Mukamel, Marco Garavelli
iSPECTRON: A simulation interface for linear and nonlinear spectra with ab-initio quantum chemistry software. Journal of computational chemistry 42 (9) (2021)
Stefano M Cavaletto, Daniel R Nascimento, Yu Zhang, Niranjan Govind, Shaul Mukamel
Resonant Stimulated X-ray Raman Spectroscopy of Mixed-Valence Manganese Complexes. The journal of physical chemistry letters 12 (25) (2021)
Marshall R Ligare, Kelsey A Morrison, Michael A Hewitt, J Ulises Reveles, Niranjan Govind, Heriberto Hernandez, Erin S Baker, Brian H Clowers, Julia Laskin, Grant E Johnson
Ion Mobility Spectrometry Characterization of the Intermediate Hydrogen-Containing Gold Cluster Au7(PPh3)7H52. The journal of physical chemistry letters 12 (10) (2021)
Kendahl L Walz Mitra, Christine H Chang, Michael P Hanrahan, Jiaying Yang, Daniel Tofan, William M Holden, Niranjan Govind, Gerald T Seidler, Aaron J Rossini, Alexandra Velian
Surface Functionalization of Black Phosphorus with Nitrenes: Identification of P=N Bonds by Using Isotopic Labeling. Angewandte Chemie (International ed. in English) 60 (16) (2021)
Karol Kowalski, Raymond Bair, Nicholas P Bauman, Jeffery S Boschen, Eric J Bylaska, Jeff Daily, Wibe A de Jong, Thom H Dunning, Niranjan Govind, Robert J Harrison, Murat Keçeli, Kristopher Keipert, Sriram Krishnamoorthy, Suraj Kumar, Erdal Mutlu, Bruce Palmer, Ajay Panyala, Bo Peng, Ryan M Richard, T P Straatsma, Peter V Sushko, Edward F Valeev, Marat Valiev, Hubertus J J van Dam, Jonathan M Waldrop, David B Williams-Young, Chao Yang, Marcin Zalewski, Theresa L Windus
From NWChem to NWChemEx: Evolving with the Computational Chemistry Landscape. Chemical reviews 121 (8) (2021)
Jeremy A Scher, Niranjan Govind, Arindam Chakraborty
Evidence of Skewness and Sub-Gaussian Character in Temperature-Dependent Distributions of One Million Electronic Excitation Energies in PbS Quantum Dots. The journal of physical chemistry letters 11 (3) (2020)
Huajing Song, Sean A Fischer, Yu Zhang, Christopher J Cramer, Shaul Mukamel, Niranjan Govind, Sergei Tretiak
First Principles Nonadiabatic Excited-State Molecular Dynamics in NWChem. Journal of chemical theory and computation 16 (10) (2020)
Daniel R Nascimento, Yu Zhang, Uwe Bergmann, Niranjan Govind
Near-Edge X-ray Absorption Fine Structure Spectroscopy of Heteroatomic Core-Hole States as a Probe for Nearly Indistinguishable Chemical Environments. The journal of physical chemistry letters 11 (2) (2020)
Xiaosong Li, Niranjan Govind, Christine M Isborn, A Eugene DePrince Iii, Kenneth Lopata
Real-Time Time-Dependent Electronic Structure Theory. Chemical reviews 120 (18) (2020)
Edoardo Apra, Eric J Bylaska, Wibe A de Jong, Niranjan Govind, Karol Kowalski, T P Straatsma, Marat Valiev, H J J van Dam, Yuri Alexeev, J Anchell, V Anisimov, F W Aquino, R Atta-Fynn, Jochen Autschbach, Nicholas P Bauman, J C Becca, D E Bernholdt, K Bhaskaran-Nair, S Bogatko, P Borowski, J Boschen, J Brabec, A Bruner, E Cauët, Y Chen, Gennady N Chuev, Christopher J Cramer, J Daily, M J O Deegan, Thom H Dunning, Michel Dupuis, K G Dyall, G I Fann, S A Fischer, A Fonari, H Früchtl, Soumen Ghosh, J Garza, N Gawande, Soumen Ghosh, K Glaesemann, Andreas W Götz, Jeff R Hammond, Volkhard Helms, E D Hermes, K Hirao, So Hirata, M Jacquelin, Lasse Jensen, B G Johnson, Hannes Jónsson, R A Kendall, M Klemm, Rika Kobayashi, V Konkov, S Krishnamoorthy, M Krishnan, Z Lin, R D Lins, R J Littlefield, Andrew James Logsdail, Kenneth Lopata, W Ma, A V Marenich, Jorge M Del Campo, Daniel Mejía-Rodríguez, J E Moore, J M Mullin, Takahito Nakajima, D R Nascimento, J A Nichols, P J Nichols, J Nieplocha, A Otero-de-la-Roza, B Palmer, Ajay Panyala, Teerapong Pirojsirikul, Bo Peng, Roberto Peverati, J Pittner, L Pollack, Ryan M Richard, P Sadayappan, George C Schatz, W A Shelton, D W Silverstein, D M A Smith, Thereza A Soares, Duo Song, Marcel Swart, H L Taylor, G S Thomas, V Tipparaju, Donald G Truhlar, K Tsemekhman, T Van Voorhis, Á Vázquez-Mayagoitia, Prakash Verma, O Villa, A Vishnu, K D Vogiatzis, Dunyou Wang, J H Weare, Mark J Williamson, T L Windus, K Woliński, A T Wong, Qin Wu, C Yang, Q Yu, M Zacharias, Zhiyong Zhang, Yan Zhao, R J Harrison
NWChem: Past, present, and future. The Journal of chemical physics 152 (18) (2020)
William M Holden, Evan P Jahrman, Niranjan Govind, Gerald T Seidler
Probing Sulfur Chemical and Electronic Structure with Experimental Observation and Quantitative Theoretical Prediction of Kα and Valence-to-Core Kβ X-ray Emission Spectroscopy. The journal of physical chemistry. A 124 (26) (2020)
Soumen Ghosh, Jason C Asher, Soumen Ghosh, Christopher J Cramer, Niranjan Govind
A semiempirical effective Hamiltonian based approach for analyzing excited state wave functions and computing excited state absorption spectra using real-time dynamics. The Journal of chemical physics 150 (10) (2019)
Anne-Marie March, Gilles Doumy, Amity Andersen, Andre Al Haddad, Yoshiaki Kumagai, Ming-Feng Tu, Joohee Bang, Christoph Bostedt, Jens Uhlig, Daniel R Nascimento, Tadesse A Assefa, Zoltán Németh, György Vankó, Wojciech Gawelda, Niranjan Govind, Linda Young
Elucidation of the photoaquation reaction mechanism in ferrous hexacyanide using synchrotron x-rays with sub-pulse-duration sensitivity. The Journal of chemical physics 151 (14) (2019)
Yu Zhang, Uwe Bergmann, Robert Schoenlein, Munira Khalil, Niranjan Govind
Double core hole valence-to-core x-ray emission spectroscopy: A theoretical exploration using time-dependent density functional theory. The Journal of chemical physics 151 (14) (2019)
Adam S Bruner, Stefano M Cavaletto, Niranjan Govind, Shaul Mukamel
Resonant X-ray Sum-Frequency-Generation Spectroscopy of K-Edges in Acetyl Fluoride. Journal of chemical theory and computation 15 (12) (2019)
Katja Henzler, Evgenii O Fetisov, Mirza Galib, Marcel D Baer, Benjamin A Legg, Camelia Nicoleta Borca, Jacinta M Xto, Sonia Pin, John L Fulton, Gregory K Schenter, Niranjan Govind, J Ilja Siepmann, Christopher J Mundy, Thomas Huthwelker, James J De Yoreo
Supersaturated calcium carbonate solutions are classical. Science advances 4 (1) (2018)
M Galib, Gregory K Schenter, Christopher J Mundy, Niranjan Govind, J L Fulton
Unraveling the spectral signatures of solvent ordering in K-edge XANES of aqueous Na. The Journal of chemical physics 149 (12) (2018)
Edoardo Apra, Ashish Bhattarai, Kevin T Crampton, Eric J Bylaska, Niranjan Govind, Wayne P Hess, Patrick Z El-Khoury
Time Domain Simulations of Single Molecule Raman Scattering. The journal of physical chemistry. A 122 (37) (2018)
Matthew Ross, Amity Andersen, Zachary W Fox, Yu Zhang, Kiryong Hong, Jae-Hyuk Lee, Amy Cordones, Anne Marie March, Gilles Doumy, Stephen H Southworth, Matthew A Marcus, Robert W Schoenlein, Shaul Mukamel, Niranjan Govind, Munira Khalil
Comprehensive Experimental and Computational Spectroscopic Study of Hexacyanoferrate Complexes in Water: From Infrared to X-ray Wavelengths. The journal of physical chemistry. B 122 (19) (2018)

Niranjan Govind.css-eqlu8i{font-size:small;padding-left:4px;} (N Govind, Niri Govind)

Publication Activity (10 Years)

Top Topics

Top Venues

Niranjan Govind (N Govind, Niri Govind)