I left aerospace engineering at IIEST and joined Heritage Institute of Technology, Kolkata with Electronics and communication engineering a year later. Was it the right decision?

Well, I cannot say whether the decision you took is right or wrong because if you have taken the decision you have given certain thought and time into it. 

Very few have the guts to leave a premier institute like IIEST and join Heritage. If you changed institute because you wanted to change your branch there but you couldn’t, then you made the right choice. 

If you’re interested in higher studies after B.Tech then Heritage does offer good opportunities. ECE has huge scopes. Coming to Heritage, ECE faculty and labs are very good, the teachers will guide you in the best possible way to help you pursue your dreams. One of my friends left civil at NIT, Durgapur for ECE here. Heritage has a decent placement record. According to the recent placement highlights the average CTC offered is 4 LPA. 

If you’re interested in higher studies, then choosing the branch you are passionate about is always a better option than choosing a good institute.