[A] [A] Blue Nile River
[B] [B] Yangtze River
[C] [C] Congo River
[D] [D] Mekong River
[A] [A] Russia
[B] [B] China
[C] [C] India
[D] [D] United States
[A] [A] Vidya Samiksha Portal
[B] [B] PARAKH Rashtriya Sarvekshan Dissemination Portal
[C] [C] Shiksha Setu Portal
[D] [D] Samarth Bharat Portal
[A] [A] Tree species
[B] [B] Traditional medicine
[C] [C] Spider
[D] [D] Frog
[A] [A] Bharat Electronics Limited (BEL)
[B] [B] Centre for Development of Telematics (C-DOT)
[C] [C] Hindustan Aeronautics Limited (HAL)
[D] [D] Defence Research and Development Organisation (DRDO)