First bsnl is a government mobile network.bsnl offer high. Cost internet Packages.for example for 17/- 110MB.it over in seconds.but other mobile networks are giving cheap and best offer.so it is bad and waste network.government do not offering best internet packagesandfull talktime packages.its internet speed is very and very slow .speed like 2g mobile network.another mobile network offers very attractive deals.bsnl full form is BHARATH SANCHAR NIGAM LIMITED.so its a waste of time using bsnl network