IRMA don't have any specific course or area. Firstly I would suggest you to go through previous papers to understand the pattern of questions asked. IRMA entrance exam requires you to have the necessary skills in LR/DI, QA and English along with speed.IRMA entrance test apart from other institutes' is the section on 'Issues of Social Concern' and This section is basically to test your awareness on issues related to rural development. You can prepare by reading The News paper & Magazines.

You may also look at recently announced policies, schemes, allocations to schemes, current issues between states, and recent happenings in the India.

The important topics covered under the Issues of Social Concern are mentioned below:

• Agriculture and Education

• Corporate Social Responsibility

• Environmental Issues

• Employment and Literacy

• Gender and Social Groups

• Health Issues

• Human Development

• Human Rights

• Indian Economy

• Rural Development

• Rural & Urban Population

• Social & Economic Development

You can check all about the detail of IRMA with given below link. 

IRMA 2018

Good Luck!