Usually BSNL launches several special plans in festivals. Daily 1GB of data is being provided with daily 100 SMS in BSNL's Rs 74 plan. Apart from this you will also get talktime of Rs10 for this offer. However, no plan of free calling is being provided in this plan.
Recently, Airtel launched a plan of Rs 93 and Geo Rs.88.
Airtel plans also offer unlimited calls, roaming calls, daily 100 sms and daily 1GB data. Its validity is 10 days. As well as Geo Plan, you get Unlimited calls, Roaming calls, like Airtel, daily 150 MB of data. The validity of the plan is 14 days and in 14 days you are being given 140 SMS.