Spice mms settings for karnataka is given below.you can use this trick to sent free mms from spice to spice.so configure these settings in your mobile to access free mms in spice
Name of connection:SPICE
Home Page: 10.200.200.3:8514
IP:10.200.200.3
Apn: leave it
after you configure these settings try sending mms,and you will succeed without a cost!