1. Brahmani: This river is formed by the confluence of two rivers, Sankh and Koel, which rise from the Chota Nagpur Plateau and flow through the Eastern Ghats before merging. So, it doesn't originate from the Eastern Ghats itself. 2. Nagavali: The Nagavali River originates in the Eastern Ghats in Odisha and flows through Andhra Pradesh before joining the Bay of Bengal. 3. Subarnarekha: This river originates from the Chota Nagpur Plateau in Jharkhand and flows through Odisha before finally joining the Bay of Bengal. It does not rise from the Eastern Ghats. 4. Vamsadhara: The Vamsadhara River originates from the Eastern Ghats in Andhra Pradesh and flows through Odisha before joining the Bay of Bengal. Hence, only 2 and 4 are correct.