Indira Gandhi Rashtriya Uran Akademi

You did not mention about the course for which you want to get information. However, the fee charged is Rs 42 Lacs, whereas the cost of training of CPL at IGRUA is more than INR 45 Lacs. The gap is made up by the Government. There is no other subsidy or relaxation in training fee available to any candidate including SC, ST and OBC. The Ministry of Tribal affairs has removed CPL Course from the Scheme of Scholarship for Top Class Institutes, hence no scholarships are assured to ST Candidates. However, the ST candidates may check with their State Government for Scholarship scheme. Please check with the Ministry for the latest updates. Some State Governments provide scholarship to reserve category candidates of their states. IGRUA can only forward the application to the respective State Governments. The candidates may approach their State Governments for the same.

Money doesn't matter unless you get brain and merit. There are loads of scholarships for a deserving and talented student. For getting admission in IGRUA you need to give the entrance examination, as you have mentioned your marks you are eligible to give the entrance. The entrance comprises of a written exam where PCB is the main subjects along with GK and English. Then comes interview where mostly Aerodynamics is asked. After that there is test where you have to use a joystick and drive a video plane. It is quite fun. After admitted you will receive scholarships so you can easily study there. First, go study for the entrance and don't think about anything else.
Good Luck.

Commercial Pilot License (CPL)
A student can get the CPL by doing his flying training for 129 hours to complete 250 hours of flying. Training facilities are available with Flying Clubs in India, Indira Gandhi Rashtriya Uran Academy (in Rae Bareilly, UP), Private Academies or Flying Schools in USA, Europe, Australia, the Gulf, etc.
Eligibility: Class XII (Physics and Maths). Current PPL License needed with flying experience in the last three years,18to 30 years and medical clearance fromAFCME, New Delhi or IAM, Bangalore.
Written exam: A test in the following subjects is needed for getting the CPL: Air Regulations, Aviation Meteorology, Air Navigation, Technical, Planning. These exams are conducted 6 times a year. Actual flying experience required is 250 hours of total flying time (150 hours of solo, 25 hours of cross country, 10 hours of instrument flying, 5 hours of night flying).
Cost: Around Rs 8 lakhs and Rs 15 lakhs.
After a CPL, you can build upon more flying hours, login 750 hours of flight time, clear the requisite papers and acquire a Senior Commercial Pilot's License.