Hello Traveller.
I'm Dr prasanna Kumar myself I frequently visit Goa yearly twice.you should Goa after the October,season will starts,now the off season in goa.in Goa we have two parts called North Goa and South Goa. In North Goa you have plenty of famous Beaches (calungutte,baga.anjuna.vagator.ashem.morjim.arambol)south Goa also have beautiful beaches,churches and temples.In goa you have two forts aguada fort and chapora fort(near vagator beach).In Goa you must go for island Trip.spice plantation.scuba dive(if you interested)Water sports.Food little bit costly in Goa.
Chennai is situated in the southern state of Tamil Nadu. The friendly locals and culture of this place allures thousands of trippers every year. It is a perfect vacation spot for thrill seekers and beach bums. Accommodations-https://www.ulohotels.com/chennai-hotels-and-resorts
Hey, Alibaugh, Kashid .
But I would say go to tarkali ,marvan. Very cheap and really beautiful , Calm. Snorkeling,Scuba,Parasailing ,all the activies are less than 800.