1. Principle investigator of the Indo-Belgium project entitled Belgo-Indian Network for Astron- omy and Astrophysics (BINA)-2" funded by DST Govt of India and BELSPO, Govt of Belgium for the period of three years from 2018 to 2021.
2. Principle investigator of the Indo-Belgiun project Belgo-Indian Network for Astronomy & As-trophysics" supported by DST, Govt Govt of India and BELSPO, Govt of Belgium (DST/INT/Belg/P- 02/2014).
3. Principal investigator of the Indo-Russian bilateral project Time Resolved Photometric and Spectroscopic Study of the Chemically Peculiar stars" funded by DST, Govt of India and Russian Foundation for Basic Research (INT/RFBR/P-118/2013).
4. Principal investigator of the Indo-South African bilateral project project entitled as Search and Study of Variability in Ap and Am Stars" jointly funded by DST, Govt of India and National Research Foundation (NRF) South Africa (INT/SAFR/P(3)/5/2009).
5. Principal investigator of the Indo-Russian bilateral Integrated Long Term Project (ILTP) project entitled Studies of CP and RoAp Stars" jointly funded by Department of Science and Technology (DST) Govt of India and Russian Academy of Science, Russia (INT/ILTP/B- 3.19/2008).
6. Co-Investigator of the Indo-Russian RFBR bilateral project entitled Investigation of the struc- ture and kinematics of the young population of the Galactic disk in the solar neighborhood" funded by DST, Govt of India and Russian Foundation for Basic Research (INT/RUS/RFBR/P- 219/2015).
7. Co-Investigator of the Indo-Russian RFBR bilateral project entitled Magnetic Activity in low-mass stars" funded by DST, Govt of India and Russian Foundation for Basic Research (INT/RFBR/P-167/2014).
8. Co-Investigator of the Indo-South African project entitled Nainital-Cape Survey for roAp stars" (INT/SAFR/2001) by DST, Govt of India and NRF.