Some of the best BA Economics colleges except DU are:

• Loyola College, Chennai
• St.Xavier's College, Mumbai
• Christ University, Bangalore
• Chandigarh University, Chandigarh
• Presidency College, Chennai
• Madras Christian College, Chennai
• Pandit Deendayal Petroleum University, Gandhi Nagar
• NIMS College,Jaipur
• Fergusson College, Pune
• KJ Somaiya College of Arts and Commerce, Mumbai

I hope this helps you!