Agar apko Goa jana hai, ap sept end se lekar oct ke 1st week tak ja sakte hai... isse apka fayeda bohot hai, 1- kharcha bohot kam hota hai
2- nature ka bharpur anand le payenge
3- chaaro taraf hariyali milegi apko. ek suggestion hai: wahan se pune ka distance zyada dur nahi hai, pune ka trip miss mat karna...
Only if you have to go to another airport to board the flight, you would need a transit visa. As long as you are inside the same airport, you do not need a transit visa.
September is a good time to visit Kashmir, at this time the autumn kicks in and you can see the splendid beauty of Kashmir. Plus Monsoon also retreats by the time. So go for it. Heaven on earth awaits you.