Akhil Narayan

I am a recordist for the last four years in a major studio. We often get newbies who are trained well in Carnatic music.

To pursue a playback singing career, you have many platforms to exhibit your talents, especially on social media. Social media is so saturated with the contents, So you have to get an extra mojo and stand out from the rest of the contents to get noticed.

A more straight factor that will help you pursue a career is to get "contacts" with the people who are close to the industry. And if you can showcase your previous recording sessions, it will help you to move further up.

1. So the first thing you need to do is to get some studio experience. Because singing in-studio and singing live is totaly different. Singing with a good condenser or tube mic and good preamp and compression will help improve your singing dynamics. According to the song genre, these dynamics and vocal control are more noted characteristics by the music directors. The following important factor is your voice's timbre. That is a naturally occurring thing.
2. Do some cover songs with an original backing track or arranged tracks in a professional studio under a sound recordist; they can give suggestions to improve your singing style. These songs can be used as reference tracks to show your previous works while contacting a music director.
3. Try to sing songs of different genre and different singing style. Try to break out of your comfort zone and learn how to adapt yourself to other styles. Anuradha Sriram, Sithara, Shreya Ghoshal are perfect example of versatile singers. Add these songs to your portfolios as well.
4. Try singing with a metronome. Every new singer who comes to the studio for the first time seems to struggle with a metronome at first. Practice with a metronome and learn and adjust yourself not to get conscious about metronome alone.

These are some starting points. 

I hope this helps!

Best wishes for your future!