if I had applied for jmi and also I have qualified jee mains then what I have to do now

Whichever you want to take admission in start checking for the respective timelines, counseling dates and important dates.

But JEE is better

Thanks.

If you are looking forward to seek admission at JMI, then you need to clear the JEE Main 2017 exam.

JMI does not conduct admission on the basis of any entrance exam, they take into account  your JEE Main score while preparing the merit list.

You will have to ensure that you meet the eligibility criteria and fill the application form of JMI.

You should have all the documents ready when you fill the application form of JMI.

For your reference, I would  suggest that you go through the links that are given below. One is related to the eligibility criteria and the other one is related to the application form.

http://www.engineering.careers360.com/articles/jmi-admission-eligibility-criteria

http://www.engineering.careers360.com/articles/jmi-admission-application-form