Most people dont understand how data usage based plans work. Recently, I met a retired government employee who asked me whether he could help him understand these plans. I reccommend, BSNL keep all options open (like sify which has all types of plans) Similar to sify, BSNL must have >Time based plans >Data usage based plans >Pay as you go Data usage plans (say Rs.1 per MB with no monthly commitment) >Pay as you go time based plans with online speed select >Limited unlimited (unlimited but with 150 MB/day guideline >Truly unlimited plans What do you say