I am living in odisha for thirty year and I have been using bsnl for eight year.you can found its network every city and rural area in odisha. It is the only network available even jungle.when I was living in my village and have to go for work in malkangiri, koraput, nuapada in odisha there are only one network is bsnl.i used to get with me while traveling outside city because no other network available outside town.i use its pack and tariff but it is costly.
I have to compromise because of its network.i also use its 3g internet depite of hih data price.there are other network like aircel, airtel, vodefone but it is useless in jungle and rural area. I got trouble with aircel network while I was outside the town.its custmer care service also good for any complain.bsnl pack price is high but for good network you have to compromise with bsnl.I would recommend it.