ONY XPERIA C6902 ZI and bsnl postpaid 3G settings

I have bsnl postpaid connection(3g). please send me the settings to activate it . Inspite of sending model name to 58355 ,they say it incorrect.
my mo. no. is 9415418790
my model is SONY XPERIA C6902 ZI.

It is easy, just goto --> Menu --> Settings and look for APN option, there add APN as "BSNLNET" and leave rest of the settings blank. That should solve your problem.