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