In a bid to provide affordable 3G data services, Mahanagar Telephone Nigam Ltd (MTNL) today announced the launch of six new longer validity 3G data Pack  with various validity options from 60 days to 365 days for its 3G prepaid customers in Mumbai circle. MTNL’s newly launched 3G data packs are priced at Rs.389, Rs.549, Rs.675, Rs.775, Rs.849, Rs1299 provides 2GB (60Days), 3GB (90Days) 4GB (120...