Before making a decision on what college you want to get admitted to there are some factors that must be kept in mind: the quality of academics and faculty, extra-curricular activities, the record of recent placements.

1. In the Heritage Institute of Technology, the head of the department barely ever engaged in any interaction with the students and never had a say in any matter. 
2. The quality of the faculty members is not good. There are exceptions but most of them lack knowledge so they are of not much help.
3. No events involving extra-curricular activities take place on the campus.
4. Talking about the placements, the average salary package is only around INR 3-4 LPA. Companies like Wipro and TCS visit the campus but the job roles offered are not good. 

There are far better options such as IEM and Techno India. Heritage is an overhyped institute. Also, look for institutes that are not in Kolkata if you want better exposure.