BSNL is a very good company, now the bsnl is improved his network strenght. One is the most benifit feature is the 2G & 3G is equal in 2G rates. And the data packages is also very low, if you compared to other. The 68 & 78 plan is very good for normal user, in the 68 plan you got 1GB 2G/3G net for 3days & in 78 plan you got 1GB 2G/3G net for 5 days, if you active 78 plan by manually you pay only 68 Rs.
For 1GB net for 5 days. Use bsnl sim for more benifits.