​​Research Interests: Atmospheric and Climate Sciences

• Airborne aerosol formation and growth

• Aerosol-induced changes in cloud, radiation, and climate

• Satellite remote sensing of trace gases and aerosols

• Urban air pollution and micro-meteorology  

• Extreme weather events

​

Field campaigns

1. Contributions of multiphase Emissions and New particle formation on Haze and Cloud condensation nuclei in India (CO-ENHANCIN): 1 April - 31 August 2026.​

2. Spring Particle In CYprus (SPICY): 1 April - 15 June 2024

3. IITK-IITM Collaborative Aerosol Measurements: April-May 2012/2013

4. Aerosol Life Cycle IOP: July-August 2011

5. PROPHET CABINEX: July-August 2009

6. Marie Curie Research Fellow:  October 2006-September 2009

7. ISRO-GBP: December-January 2004

​​

Sponsored Research Projects

1. The role of multiphase emissions and new particle formation on haze and cloud condensation nuclei in India (ongoing) - Academy of Finland / 4 Years (2024-2028)  / Partner

2. Investigations of atmospheric aerosol physico-chemical properties: Ambient observations and numerical simulations (completed) - Consultancy Project / 2 Years 4 Months (2021-2023) / PI (Co-PI: Prof. P. Prem Krian and Dr. Ashoka S. Vudaygiri, School of Physics, UoH)

3. Association between atmospheric aerosol nucleation and cloud condensation nuclei: Implications for aerosol-indirect forcing (completed) - PI (Co-PI: Dr. Rakesh Hooda, FMI, Finland) UoH-IoE / 3 Years (2021-2023)  

4. Observation of nanoparticles in a polluted environment: From sub-5nm to CCN-active sizes (completed) - PI DST-SPLICE-CCP /  4 Years (2018-2022) 

5. Understanding new aerosol particle formation in the atmosphere: Observation, modeling and comparisons (completed) - PI DST-SERB / 3 Years (2017-2020) 

6. Start-Up Grant (completed) - University Grant Commission, Government of India / 2 Years (2017-2018)

​​