Presently working as Director, QA, FSSAI, New Delhi, India. More than 33 years of post M. Sc. experience in the area of Analytical Chemistry of Natural Products and Pharmaceuticals. Expertise in method development, identification, validation, and quantification of bioactive constitutions of microbes, medicinal plants, and tissue culture samples using sophisticated equipment like GS-MS, UPLC, HPTLC, LC/MS/MS, and HPLC. My area of expertise also includes analysis of Pharmo-kinetics & Pharmo-dynamics (PK-PD) samples, drug metabolites, and their mechanistic studies. Published more than 130 research papers in journals of National and International repute, 11 best paper awards, 37 invited lectures, attended 26 conferences national & International and 11 book chapters.