The conceptualist proposes a concept of a Union of South Asian Nations like European Union who were once parts of Undivided India. This include several South Asian Countries like India, Nepal, Bhutan, Bangladesh, Sri Lanka, Myanmar, Thailand, Laos etc. Currently there are three major unions are there ( SAARC, BIMSTEC and MGC), which can be converted into a greater South Asian Union.

For more details, watch this video: https://www.youtube.com/watch?v=5KfbE4EX04E&t=134s