Use BSNL Modem to all sim by hackthemall.tk

yes , now you can use BSNL modem for any sim without any cost through very simple steps as follows - 
1. plug ur modem to
pc... now ur
software
will be opened
automatically.
2. goto network
select
manual.
3. now
select ur
desired network and
create a connection
for
ur network.
4. set it as default
connection and exit.
5. now
put the other
sim for which u
created connection.
6. plugin modem
again
and it will say invalid
sim..dont
worry ..just dont
press ok, rather
drag it to a corner.
7. now goto network
connections under u
can see the 3G
Modem
connection there.
just double
click it and
put dial up number
*99#
and press dial...now
u
will be connected
successfully.