B.Optom Graduate considering CPC

Bachelor of Optometry from India, finishing internship. Considering CPC certification and medical coding career.

Questions:

Anyone switched from clinical background (nursing, pharmacy, optometry) to coding? Did it help?

Realistic starting salary in India for CPC-certified, no experience?

Is ophthalmology coding a viable niche?

Red flags in Indian training institutes?

Any guidance appreciated. Thank you.