As you want to get the details of process to become an Airline Pilot so here is he information of the same for you:

Step 1:
Candidates must have Student Pilot License and then get registered at a flying club which is recognized by Directorate General of Civil Aviation (DGCA), Government of India.

Step 2:
Second and important step is Private Pilot License

PPL training includes sixty hours of flying of which about fifteen hours are dual flights, that is accompanied by the flight instructor and at least 30 hours of solo flights apart from five hours of cross-country flying.

Step 3:
A Commercial Pilot Licence may be obtained only after a PPL has been acquired. To obtain a Commercial Pilots License (CPL) 250 hours of flying (including 60 hours for the PPL) is necessary.

Fee Structure and other Expenses till getting a Commercial Pilots Licence

AT Step 1 Bank Guarantee of = Rs. 10,000/-

AT Step 2 @Rs 3500 per hour (60 x 3500) = Rs. 2,10,000/-

AT Step 3 @Rs 3500 per hour (250 x 3500) = Rs. 8,75,000/-