Hey thejesh !!
you should consider going to goa only after September now... because the weather will be hot now... and during monsoons water sports activities are not available... You can consider the following itinerary.: Day1- visit North Goa beaches ; Anjuna Calangute , Baga , vagator , morjim spend the evening at chapora or aguada fort (beautiful sunset) then after that go for night party at some club if you prefer parties .. Goa is the best for night life. day2- go to south Goa beaches and old Goa spend the evening at cruise...
day3- go for water sports and scuba diving it's a complete package for whole day.. day4 : go to Dudhsagar waterfalls it's one of the best parts of visiting Goa if you like peace hope this is helpful ...
Thankyou