You can go for the Boss Compressors - CS series I think they are, called Compression Sustainer or something, supposed to be good, about Rs. 4000.
Tansen Guitars are available all over Bangalore, go to Reynolds for a look, they have the maximum models, ...go somewhere else to buy . I don't know much about Tulasi guitars, but for the price of Tansen guitars, you might get a jackson or a slammer. Also, in Aruna musicals, they have an Ibanez, I did not see the exact model (it had the G10) logo on the head, with floyd rose for 18500. Check that out too.
In case you play Satriani, try the Ibanez tube screamer pedal, he i know he used to play that, you can hear that in his slower songs like crying etc. Marshall amps are definitley better, they will cost you about twice that of stranger.