hey kavya... *hugs* good 2 c u...
as far as surname goes its--- anurag ganguly
tani chaterjee
subodh bhattacharya
ritesh sengupta
since 1st episode m tryin 2 solve d tani basu puzzle.. i tot later she gets married 2 subodh may b it cud b a mock marriage but den dey shwd subodh as bhattacharya.. b4 dat i assumed as they had decided basu surname 4 anurag.. it cud b a mistake or tani "basu" is d son of basu uncle who was shown yday or it can b entirely new character..