Presidency University, Kolkata is a better to place to study economics than BITS, Goa, or Hyderabad. Presidency University, Kolkata is well known for its economics department. It also has an excellent subject record.
In the national ranking too Presidency University comes at the top. One of my cousins studies at Presidency University, Kolkata. And he vouches for the Economics degree provided by the institute.
Taking into consideration various factors like fees, faculty, it is safe to say Pracidency University is the better alternative.
But if you are looking for placement after graduation, then joining Presdancyi will not be a good idea. Although their Economics dept. Is well-renowned, they don’t offer placements after graduation. You will have better placement opportunities at BITS Goa.
The better choice is undoubtedly EEE at BITS Goa than ECE at NIT Jalandhar.
NIT Jalandhar is still a developing institute whereas BITS Goa is a well-established institute that has got reputation all over the world. Most of the students have cracked competitive exams like GMAT, GRE, and UPSC, etc with a good rank.
You will interact with people who have appreciable knowledge and you will have healthy competition as BITS Goa don't have caste reservations.
Finally, if you can afford to join BITS then do it if not take a loan and don't worry about returns. You will get them in a year or maybe 2 years. Ultimately the choice is yours.