Hi Sharath,
HR itself is a very wide term. 2 years ago, I was working as a CCE in an international call center. Through an Internal Job Posting (IJP), I got an opportunity to work in the HR department. You can also explore IJP (Internal Job Posting/Internal Job Promotions) in your company.
If you are not HR qualified, consider starting with recruitment. I would suggest focusing on IT recruitments or middle and senior-level recruitments in BPOs, as they are more challenging and offer long-term career growth.
Regards,
Renu Arora