Are you asking for JEE Main? JEE Main exam will be held from 9th - 12th January, 2019. You can check the complete information with the given below link.

https://engineering.careers360.com/exams/jee-main

In case you have query for any other exam let me know.

Good Luck!

Please mention the name of exam because of without knowing the name of exam we cannot tell you the date of exam so while asking questions please provide us the complete details needed to answer your query so that we can answer your query in the best way possible.