Dell — laptop is not working till i purchased it

Address:

Muzaffarnagar, Uttar Pradesh

in august 2014 i puchsed a laptop of dell .after one day its touchpad stop working .i tried calling dell customer then after 10 days they recieved my call.they on onlu with phone troubleshooting.then after one month grahics and window stopped working ...dell says they are not resonsible for it...there is some technical problem in laptop ...so either i want cash back or replace the laptop of same price value todat i.e 44, 500INR..plz seek into the matter