There are some free SMS provided by GSM service providers. they mostly allow free SMS to same network ( Airtel to Airtel , Hutch to Hutch ). when activated any Data Package there are some free SMS given by providers.
Airtel Free SMS to Airtel
Activate 99 Card or Reload Rs. 99 and get Free Rs. 99 talktime ,350MB free Data, 1000 Free SMS to airtel
Activate 25 Card or Reload Rs. 25 and get Free Rs. 25 talktime , 100MB free Data, 500 Free SMS to airtel
Those Package available for who bought sim before 2010
some Free SMS given when you buy Data Packs *155*1#
Airtel 2500 Minutes Free and 200 SMS for 249 reload
Hutch Free SMS to Hutch
activate sms packs *221#
More Hutch USSD Code
Mobitel Free SMS to Mobitel
buy some data packs that gives you Free SMS
Buy Mobitel Daily rentel Rs. 5 package sim. It’s prepaid sim daily charge Rs 5. you will receive 50 Mobitel to Mobitel Free Calls, 50 SMS , 50 MB data.
Buys SMS packs #767#
More Mobitel USSD codes
Dialog Free SMS to Dialog
buy some data packs that gives you Free SMS
197 reload any prepaid sim u get 1000SMS + 500MB anytime + 197 bonus money
Dialog SMS packages love Reload 150 SMS FREE
More Dialog USSD codes
Etisalat Free SMS to Etisalat
buy some data packs that gives you Free SMS
More Etisalat USSD code
Free SMS to Other network , Free SMS to foreign country , Free MMS, unlimited SMS free , sms tone