[return_of_vengeance]

this is possible but its sure illegal to merge any two connections, moreover u have 2 of tata & 1 of MTNL. your server will be overloaded, they will easily know it by counting yours monthly load,

I used to run a cyber cafe, i had same probe, but knew it from frnds that it wont help really, but add to troubles.
Better u use 1 sp for all the computers maybe at different speeds....