KBG-18 What is a CD?

What does a CD mean?
See the picture and then answer.

Here is a clue although you don't need it!

Come on all the roadies as well as others, now shoot before someone else does it faster!
First three correct answers get featured in the next post.

Thanks for your continued support to KBG- Kaun Banega Ghumakkad. We are already on KBG-18! Hurray.

      - Harsh-the-Ghumakkad/ 12th June 2019

We are grateful to Ramya Sriram of UK for KBG logo design.

#kbg #kaunbanegaghumakkad #contest18 #CD #dhabas #highways #ghumakkadhb #ghumakkadharsh