Hi Disha. Economics is a line full of opportunities and it is important to grab those opportunities by taking quality education. And for quality of education in MA in economics, top colleges in India are:

Delhi School of Economics.

JNU

Indian Statistical Institute

IGIDR, Mumbai

Madras School of Economics

GIPE, Pune

Top institutions abroad for MA in Economics are:

London School of Economics

The University of Chicago

University of Oxford

Bocconi University.

There are many colleges and universities for which you can apply for ma in economics. As per me, some of the prestigious colleges are 

• Delhi school of economics
• ISI
• IGIDR
• Madras school of economics
• Ambedkar university Delhi
• Shiv nadar university
• South Asian university
• JNU
• Jamila Milia Islamia University