Complex sentence: Over the next three decades he held several conservation-oriented government positions, among which he was India's first Honorary Wildlife Warden, Vice Chairman of the Indian Board for Wildlife, and a member of the Rajasthan and Gujarat Wildlife Advisory Boards.
Split into simpler sentences: Over the next three decades he held several conservation-related government positions in India. He served as India's first Honorary Wildlife Warden, Vice Chairman of the Indian Board for Wildlife, and a member of the Rajasthan and Gujarat Wildlife Advisory Boards.