Complex sentence: He has also trained hundreds of diabetologists and allied specialists in India and other developing countries, has contributed significantly to scientific research on diabetes and serves on various national and international bodies in his field of specialization.
Split into simpler sentences: He has also trained hundreds of diabetologists in India and other developing countries. He also has contributed significantly and allied specialists in India and other developing countries, has contributed significantly to scientific research on diabetes and serves on various national and international bodies in his field of specialization.