Fees is approximately 1.15lac per year including hostel and tuitions fees. 

Official fees structure for this uear shared below. 

http://www.iitb.ac.in/newacadhome/FeesStructure.jsp

Hey Rajesh.

The fees for foregin nationals for the course of UG course- Btech is Rs 7600 payble at the time of admission fees, 315,000 Rs per semester  (includes Tuition fee, hostel charges, and many more charges) and Rs 3000 payable as deposits.

The total of these for the first semester, at the time of admission will be Rs 325,000.

You can use the link below to see the exact fee structure.

https://www.google.co.in/url?sa=t&source=web&rct=j&url=http://www.uceed.iitb.ac.in/downloads/IITB-Fee-Structure-2018-Batch.pdf&ved=2ahUKEwiFnP7-9Y_dAhXFM48KHeqECOUQFjACegQICRAB&usg=AOvVaw3iP4JJO15dAAb2Ic-BY17V

Best of luck!