What are your experience in visit India, SriLanka, Pakistan, Maldives...
Do you deal with locals and there traditions,foods & etc...
if you are visiting a country , of course you need to deal with foods and traditions because that is the main essence of our visit on those places.
have been to india and Hongkong , but aside from those? that is the only countries i come to visit .
Traveled in India (Kerala) for 4 weeks in total. Great experience, we spent lots of time communicating with the locals
4 weeks? one whole month?

No, I haven't been to any of these countries.
then you must try one mate.