I have one DSL connection (unlimited package) operating at 200 kbps speed (peak hours) of HFCL ISP. I have LAN set up with 7 computers (plus 2 network printers) built with the help of 2 Dlink 8 port switch connected each other by LAN cable. My ISP is not changing a higher speed package reason being told of multi user. I want to purchase a new DSL connection from same ISP on different telephone line and phone no. and DSL modem to increase the speed. How I can team/tie the two different DSL routers on same LAN to increase my speed?

You cannot bond or team. But you can load balance. Look around for dual Wan routers, like the Cisco RV082