As one of my friends studied in Loreto College Kolkata, let me share some facts about it:

• Loreto College is one of the reputed institutions in Kolkata.
• It is famous for its English and Humanities department, but Economics is also brilliant here as well.
• There are a lot of seminars, the most prominent being Ecolore which is the department's annual event. 
• The teachers are very helpful and cordial. 

If you want to pursue Economics, Loreto College will not disappoint you.