Pilot Training

To become a commercial pilot:
1) You need to first possess a student pilot license. You must be over 17 years of age and have completed class 12th with science (Physics and mathematics) with 50%.
2) Your vision in one eye must be perfect. In general medical terminology, it is called 6/6 eyesight. In the other eye, you could have an imperfection of 6/9, which must be correctable to 6/6.
3) General physical fitness is mandatory. You must be free of any disease that can hamper normal function.
4) You need to register at a flying club, which is recognized by Directorate General of Civil Aviation (DGCA), Government of India.
5) Next is private pilot license, which includes sixty hours of flying. A commercial pilot licence may be obtained only after a PPL and 250 hours of flying.
Below mentioned are some of the institutes offering commercial pilot training:
1. Academy of Carver Aviation Private Limited Pune.
2. All India Institute of Aeronautics Dehradun.
3. Center for Civil Aviation Training (CCAT) Delhi.
4. Glorietta Aviation Ghaziabad.
5. Fly Wings Aviation Pvt. Ltd. Mumbai.
You can refer to the below mentioned link:
https://hospitality.shiksha.com/commercial-pilot-training-in-india-categorypage-6-87-301-0-0-1-1-2-0-none-1-0#page-top

Pilot Training (Commercial Pilot Licence)
Duration: 1 Year (Approx.)
Eligibility:
10+2 or its equivalent with a minimum of 50% marks in Mathematics and Physics. (If you don't have Physics & Maths in 10+2 you have an option of doing these two subjects from National Institute of Open Schoolings On-Demand Examinations and can still start your Pilot training course. Visit www.nios.ac.in for details)
At least 16 years of age to start pilot training. Vision in one eye must be perfect. (6/6 eyesight) In the other eye, you could have an imperfection of 6/9, which must be correctable to 6/6. You must be free of any disease that can hamper normal function.
If you belong to the sky, come to IGIA, the aviation specialist for more than 12 years for the Pilot courses that provides the wind to your wings and aspirations. The sky has just got wider with the opening up of national and international sky routes.
The demand for the pilot license holders is again growing stronger and the aspirants can now actually see their dreams flying to reality. IGIA, with its specialisation in aviation and extensive experience in national and international pilot training is among a selected few in India and is proving to be a perfect launch pad for pilots with its International associations for the best possible Pilot training.
The job of a pilot is a highly specialised one. It requires knowledge of air navigation, interpretation of meteorological reports, operating sophisticated electronic and mechanical controls, leading the aircraft under adverse circumstances, and being a leader to the flight crew and passengers under climatic and other emergency situations.
You will be responsible for the passengers, the crew and the aircraft. Hence you must have discipline, patience, responsibility, punctuality, commitment and self-confidence.
At IGIA the aspiring pilots can expect to receive the best guidance for the pilot's License Conversion Examination conducted by DGCA, Govt. of India, at the lowest possible cost with the advantage of being taught by the professionals holding the licenses from DGCA who readily share their experiences with the students that enriches them and come handy in their overall performance.
Students who want to fly for recreation/hobby can do PPL (Private Pilot License) for which they need to be 10th Pass with at least 50% marks.

Commercial Pilot Licence with Instrument Rating (CPL/IR) - The traditional ab-initio method of training pilots for the airlines. The CPL/IR are the bare necessities for anyone thinking of a career in the airlines. Trainees spend about 200 hours training on small general aviation aircraft. While in Singapore we think of commercial pilots only as those who helm the large jets taking off and landing at Changi, the term 'commercial pilot' technically means any pilot who flies for financial compensation (pay) for their services which can range from corporate jet charters to crop-dusting.
Anyway, to get to the airlines, CPL/IR holders must adapt from operating in a GA environment (single crew, piston engines) to an airline environment (multi-crew, turbine engine) by doing a Jet Orientation and Multi-Crew Coordination (JOC/MCC) and a type rating course (typically $20-50k on top of CPL/IR if not sponsored by airline). A type rating is like a special add-on to the licence allowing the holder to fly ONE specific aeroplane (eg: B737 TR allows you to fly only Boeing 737s.) To move on to another aircraft type, such as say, an A320, the pilot will have to get another type rating. After going through all this, the pilot starts off his/her airline career as a second officer (first on smaller airlines).
As far as the differences between the Singaporean (CAAS) and Australian (CASA) courses go, I think the Singaporean (CAAS) course comes with ATPL theory while the Australian (CASA) one does not, and on top of that, you need to do a conversion to use a CASA licence in Singapore.
Air-Transport Pilot Licence (ATPL) - Is the pinnacle of pilot licencing. It essentially allows a holder to be in command of a scheduled air career's aircraft (in English: airline captain). A CPL holder receives a 'frozen ATPL' upon passing all required ATPL exams (yet still essentially holds a CPL holder on paper). After logging 1500 hours, he/she 'unfreezes' this and receives all unconditional privileges of the ATPL.
The ATPL (Air Transport Pilot License) Theory course you mentioned is essentially what it says it is - a theory course covering all the relavant ATPL theory. With that being said, I believe this course is part of the CAAS CPL/IR course.
Multi-Crew Pilot Licence (MPL) - Because of the anticipated rapid growth in global air travel, ICAO devised an alternative all-in flight-training method to streamline pilot hopefuls to the airlines to meet these demands. If the CPL/IR is a cheesebur