crime against online Harresment

I am just a normal citizan of India. Basically it started some months back when due to my lust I took a service from prostitute. however it was a fraud and the people behind it are continuously harresing and asking money even after months. I was not indulged in any s*xual activity as it was a fraud. However they are harresing me that they will leak my number or would give it to police. please help ke with legal advice. i don't know if this is the right place but please help me with the issue.