First, you should ask your sister which subject, foreign business or insurance management, she is more interested in. It is hard to learn about a subject if you do not have an interest in it, no program can help her get the most learnings out of it.

So, help your sister to figure out what area she is interested in. Like if she wants to do business in a foreign, she should do foreign business. Help her learn about insurance if she wants to build her job around it. To be honest, both programs have a lot to offer.

BIMTECH, Greater Noida is one of the best places to go to college. For a general idea, we can say that PGDM in Foreign Business (PGDM-IB) will teach her how to deal with foreign issues and do business across all borders. She will learn more than just new ways to do business.

When she gets her PGDM in Insurance Business Management (PGDM-IBM), she will learn how to manage finances, be able to plan and control the financial resources of any business and take on more responsibilities like these.

It's important to research the institution's alum base, the profiles offered during placement, the corporate competitions won by the business school, and the brands that frequently visit for recruitment when you are considering a suitable college for an MBA in international business. 

In terms of IIFT, it is considered a niche college for international business. However, it's important to keep in mind that the competition for admission is very tough compared to the Delhi School of Economics. It's important to keep in mind that DSE and IIFT are not in the same league. It's important for you to conduct your research and weigh your options before making a decision.