Minimum age required for CPL is 18 years and to start flying training is 16 years.

Yes, no Multi-engine/type rating is required to get a job as Flight instructor or in a charter service operating with single engine aircraft.

A CPL holder can fly as PIC an aircraft not exceeding 5700 kg. Though you can fly above mentioned aircrafts as Co-pilot.

yes if that particular aircraft is endorsed in your SPL or PPL.

yes if your eye sight with glasses or contact lenses is 6/6.

yes. If you were not a student of Science (Physics & Maths) stream then you need to clear Physics and Maths from open school (NIOS). Once you clear Physics and Maths you can request DGCA for upgradation of your Computer number to CPL.

The upper age limit for Commercial Pilot is 65 years. So age of 30/40/50 years is not a barrier in your course.

CPL training comes under higher education. So you can approach any national or private bank for loan purpose.

yes. If you were not a student of Science (Physics & Maths) stream in 10+2, you need to clear Physics and Maths from open school (NIOS).

Normally 5 months including RTR (A).

Six papers including Signal examination.

A Pilot aspirant should first clear his Medical examination and Ground training. Then only he should go for Flying Training.

Normally the money needed for CPL is between 24 and 28 lakhs. You need extra amount of Rs 5 lakhs to finish your Multi-engine rating.