[A] Chotanagpur plateau
[B] Western Ghats
[C] Southern
[D] Northeastern
[A] Sri Lanka
[B] Indonesia
[C] Nepal
[D] Bhutan
[A] Karnataka
[B] Bihar
[C] Jharkhand
[D] Maharashtra
[A] Hindustan Aeronautics Limited (HAL)
[B] Indian Space Research Organisation (ISRO)
[C] CSIR–National Aerospace Laboratories (NAL), Bangalore
[D] Bharat Electronics Limited (BEL)
[A] Indonesia
[B] New Zealand
[C] Australia
[D] Greece