Can PHP provide stable life-long career option in India?

Hi, I am a bachelor male from India and i am nearing my mid-thirties.Due to family,monetary & other related social problems I couldnot make a stable career to-date. I left my earlier sales career .Now since I am B.Sc. graduate in pure science I want to make a career in IT. I have some knowledge of programming language like C as well as assembly language. Now my question is ,does the role of PHP developer or a web-developer, provide good career option to enable to make a livelihood out of it?