Here is a trick for you to send free mms To send unlimited free mms in your bsnl mobile to another mms mobile follow the settings below
goto--->menu
select--->tools
goto--->settings
select--->connection
select--->access points
goto--->options
select--->new access point
in connection name
type "free mms"
data bearer--->packet data/gprs
access point name --->gprsnorth.cellone.in(for north zone)
home page --->http://mms/mmsc
Then option advanced settings
networt type--->IPv4
proxy server address--->10.100.5.20
proxy port number--->3100
save and activate it.
NOTE: while trying to send mms add +0091 before the number and thats all,you can now send unlimited free mms in bsnl mobile network india.