Hello A. Vamsi Krishna. Thanks for contacting Careers360 and we hope we will be able to answer your query. 

CENTAC 2018 will be conducted for admission into various undergraduate courses in the field of engineering, pharmacy, etc.  So, obviously the level of input you have to put in will be very high.

Anyways, we believe that the tentative dates for the application form to be available to the students will be around the 3rd week of May and the last date of submissions will be the last week of May.

For more information, I would like to direct your attention to this Careers360 article:

• https://engineering.careers360.com/articles/centac

Hope this helps you and all the best!