Maaza — found black color particles in maaza

Address:

Hyderabad, Andhra Pradesh, 500048

I have bought maaza cool drink on 10-dec-17. After we finished half, there is black sticky particle at the down. We then shifted the cool drink in a plastic glass. Its thick black block of particle inside the cool drink. I have taken pics of the bottle batch details and the black particle which we found. Please let me know how to give complaint against this. This is very dangerous for consumer's health mostly kids who likes to drink maaza.