MET is a written examination to assess the candidate's General Reasoning abilities and awareness of important concepts and theoretical and practical perspectives on development and planning. You can prepare it at your home, You need to focus towards Economic & Social issues more. For further information you can go through with the given below link.

http://www.iitb.ac.in/newacadhome/M.PhilBrochure2018-1903April.pdf

Good Luck!