If you're asking Can I Become a Commercial Pilot Without a Science Background the short answer is: no your non-science background does not automatically stop you from becoming a commercial pilot but there are certain academic and eligibility conditions you must meet.
According to the eligibility guidelines on the Directorate General of Civil Aviation (DGCA) side in India to begin training for a Commercial Pilot Licence (CPL) one of the key educational criteria is completion of Class 12th (10+2) with Physics and Mathematics. This is because aviation training involves topics like aerodynamics navigation mathematics and physics of flight.
Importantly having a non science 10+2 background (for example commerce or arts) does not permanently close the door. What matters is that you eventually fulfil the Physics and Mathematics requirement. You can do this afterwards via open schooling boards like National Institute of Open Schooling (NIOS) or equivalent as a private candidate. Once you pass those subjects, you become eligible to apply for pilot training just like science stream students.
Validate your 10+2 qualification from a recognized board.
If you didn't study Physics & Maths in Class 12th enrol and clear those subjects via open board or equivalent.
Pass the medical fitness (Class 1 & Class 2th) exams prescribed for pilot training.
Choose a DGCA approved flying school and complete the ground theory flying hours and licence tests.
So when you ask Does that mean I cannot become a pilot without science background the answer is No. Your original academic stream doesn't prevent you from becoming a commercial pilot. What's essential is that you satisfy the eligibility criteria (especially Physics & Mathematics) and complete the required training. With commitment and following the correct path you can absolutely answer Yes I can become a commercial pilot without a science background.