You will have to apply for VIT exam to get admission in VIT campuses.

Through Jee Mains you can get admission in the IITs/NITs/IIITs and such other CFTIs whose admissions are based on the JEE (Advanced)/JEE(Main) ranks. Last date to apply for VIT entrance online and offline is Feb 28th, 2018. 

Also you can apply it from here. VIT Application form

Good Luck.

VITEEE conducts his own entrance exam to provide admission in engineering program.

If you want to take admission you can apply for VITEEE application form it is available now. 

To apply for the application form you can refer below link

VITEEE 2018 Application Form 

Good luck!!