Both of these fields which are Economics and Data Science are in huge demand in Industry nowadays and if we combine these fields, they form the very foundation of the modern society as almost all the banking and the financial engineering fields are bases on the very synergy between the two. To have a command on both you need to go through rigorous econometrics and have command over Python and all the Machine Learning algorithms. Most NITs and IITs nowadays offer these courses and getting into it would be very great if you plan to continue in this field.

You can also use our college predictor to see your chances in all the colleges:
https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer

Hope I have answered your question. All the best!