2001 ki cultus with no issues will cost you around 350-375k in karachi. Do not buy this car if it has mechanical and body issues too as it will not be few things to be fixed and will require alot of your budget. So even of you buy it for 3lacs, you will loose in two ways:
Noone will be buying it from you afterwards due to duplicate plates and voice in cplc
Secondly, the fixation of issues will eat up alot of your paisa afterwards. If you are low on budget, get hold of a nice mehran. Run it for a year and accumulate funds. Sell it on good amount and buy a problem free cultus later on