Which laptop should i buy? Not more than Rs.90,000?

Any brands will do these days. Basically it all depends on what is your main purpose to have a laptop. For example, if you're working on graphic design, you will need big screen/monitor and higher good specification (i.e. iMac). However, if you're only doing a college student's work (MS Office applications) that doesn't need sophisticated programs/software, a netbook of Lenovo or HP will be sufficient.