1. Focus on your talent - in this case singing - how can you work and improve on this (singing lessons/singing coach) - discover what kind of music suits your voice and what you enjoy
2. Get involved - use your skills as much as possible - perform and sing as much as possible - research what singing groups are available in your location and think about joining local group - this will help you build on your experience and building visibility; audition as much as you can
3. Expand your knowledge - for example learn to read sheet music - to be considered a professional, there is an expectation you can read music; think about learning an instrument - this will also support reading music, but it also means you have multiple talents
4. Creating a brand - so much in music is done online - how can you use social networking platforms/creating a website to share your music and talent. Singing is also more than just singing - its about stage presence, connecting with the audience
Hope this helps you start thinking about some things you can start looking into
Given your location, I would suggest you start with joining a class in Classical Singing, be it 'Indian' or 'Karnataki'. The classes would not only help you on how to train your voice but also would provide you with a platform to represent yourself and have a start from.
Hope this helps.