Science & Technology for UPSC CSE | DNA Fingerprinting | Rakesh Verma IAS (R)
Economy for UPSC CSE | Ginni's Coefficient | Rakesh Verma IAS (R)
Science & Technology for UPSC CSE | Nanotechnology in Energy Storage| Rakesh Verma IAS (R)
Economy for UPSC CSE | Economic Inequality | Rakesh Verma IAS (R)
Science & Technology for UPSC CSE | Nanotechnology in Solar Power| Rakesh Verma IAS (R)
