Niket , if you can stretch your budget a bit more, the BB 9380 (Touch Screen with OS7.0) is available for INR.16990 , the BB 9360 is available for INR.18990. There are quite a few models available within your budget. Do keep in mind that you would need a separate data plan for internet,mail and BBM. check out BlackBerry Phones & Smartphones - Latest Mobile Phones & Tablet PCs - India
for more options on the models available. You can browse the internet without a dataplan if you are using a BSNL 3G prepaid sim if you enter the appropriate APN setting. Did not work when I tried with Airtel / Vodafone SIM. Hope this helps.