kk.....here r the other options i came to see in router's settings........
below r the snapshots........
there is nothing like DMZ or virtual server or nat.......nothing

i know how to do things....but cant see options .......


i repeat my router make is : UTStarcom UT-300R2U. with MTNL broadband connection.............
yeah i hv done it....



this will be useful for other ppl like me who faces some problem while finding port forwarding options.........
just simply use telnet........i have also configured all my settings therein..........
thanks a ton to paroh too......