GPRS SETTINGS OF ALL OPERATORS.
Reliance
APN: rcomnet
Access Number: *99#
Aircel
APN: aircelgprs
Access Number: *99***1#
Idea
APN: internet
Access Number: *99#
Docomo
APN: TATA.DOCOMO.INTERNET
Access Number: *99#
Airtel
APN: airtelgprs.com
Access Number: *99# 
BSNL 3G
APN: bsnlnet
Access Number: *99#
BSNL 2G
APN: bsnlnet
Access Number: *99#
MTNL 3G
Postpaid: APN: mtnl3g
Prepaid APN: pps3g
Access Number: *99#
Vodafone
APN: Vodafone www 
Access Number: *99#