Hello man.......am near kolkata and use the kind of stuff you are looking for. Now for the route to Chandni Electronics Market....reach Dumdum station, easily from Sealdah or Howrah, take the metro to chandni chowk, :Rs:15 i guess,...and Voila!!!.welcome to chandni market, you will get all kinds of electronic stuff you need from there...but for the lipo...i suggest you get it from online .....like rcbazaar or rcmumbai....because those are not available in retail in chandni
As for hobby goods in the city you can visit indian Hobby shop....get down at park street......n follow the google map
to the place.....i suggest you should visit the cool place if you got time.....good luck rcing!!!