I may be wrong here but I got the impression from thr first post that the poster was'nt a qualified licenced scooter or moter cyclist, Mabey it's just me, but is the madness of Goan traffic the best way to take your first step in this direction ?. Everyone seems quite happy about this, but the risks for even experienced riders are quite high, as no matter how careful you are, the drivers in their monster four wheeled wagon down frpm Mumbai, dont drive as carefully as you.
I've ridden motobikes in th UK in past years, but with Goan drivers and the loose grit and terrible Goan roads, theres no way I'd go happily riding around Goa on a scooter wearing tee shirts and shorts. Gravel is auful sharp and skin is auful thin. A fine from the boys in brown would be the least of your worries. At least thats my, very likely, minority view
Alan