you can definitely give CAT 2018. Wait till the last month of july and registration will begin. Start preparing if you haven't already. All the best!

Hii Rutu

CAT 2018 exam has been over. You can give CAT 2019, just ensure that you fill up the registration form that are comes online in the month of August(2018) till September(2018) to give exam in November 2018 for admission in IIM AND OTHER colleges in 2019.

For more info. read the below article about CAT 2019-

https://www.sarvgyan.com/articles/cat-2019

Hope this helps.

In case of any query feel free to reply.