i bought a black&decker 550w in 2k and a toolkit with it costed another 200 rs. but its a complete kit. i can drill almost anything in my home (when needed) and screw/unscrew. It doubles as a spanner too. dont buy from ebay or rediff. those machines are crap.
I'm not really sure but i guess you can find toolkits around places like karol bagh. i saw that kinda shops somewhere around there. not sure though.