Or you can buy the Acer Aspire 5810T: 15.6", 4GB RAM, 320GB HDD, Intel 4500MHD, card reader, BT, WiFi, ... Price: 35k.
Looks very sleek probably one of the thinnest laptops. All aluminium body. It's got all the specs for your project work. Since you won't do any gaming, the specs seem good. Battery life: 8hrs (claimed) should give you 6 hrs at least. Seems good to me. Saw it on display at Manipal centre, Bangalore.
Btw, just bought an Aspire 5738z for my room mate. Plays most games effortlessly. Good value for money.