Aviation

The only educational requirement for CPL training is 10+2 with PCM as its subjects. No graduation or post graduation is required.
In case you do not have PCM at 10+2 level, you shall stand ineligible for the course.
There are although provisions for those candidates who do not have PCM at 10+2 level and are interested in pursuing CPL training. They should appear for maths to complete the trio of PCM in the next session of board exams. After clearing maths at 10+2 level, they shall qualify with PCM and hence shall fall eligible for the course.
The other may remain as additional subjects, although they are of no use.
Like I mentioned earlier also, no Graduation or Post Graduation is required to pursue CPL training, lnless you are looking to join the defence forces as a Flying Officer (Pilot).
In defence services, they require graduation if you go through AFCAT or CDSE.

Definitely, you can!
But foreign airlines hire expat pilots with certain specific requirements. Usually, the requisites include:
# ATPL
# Flying Hours at least 1500
# 500 Hrs on type
# English Language Proficiency Level 5
# Class 1 Medical
The license requirement may be ICAO or FAA depending on the operator's needs.
So, before you apply for an airline like Qatar you will have to obtain at least the minimum flying hour requirements and Medicals. License conversion can be done based on their requirements.
They too have different selection procedure and pay scales for those pilots who join them from outside their home nations.
The work culture is designed to make the newcomer feel comfortable and adjust smoothly. To and fro tickets for home travel are provided. Accommodation and other important amenities are also taken care of.
Indian CPL and ATPL are ICAO licenses, hence you can be eligible to apply to any nation where they accept such licenses provided you completed the other requirements also.