Hello student, 

As you want to know here I would like to give you a list of best MBA colleges which provide dual specialization.
The list of colleges is:
1. National Institute of Management - Mumbai, Maharashtra
Masters in Business Administration (Dual specialization)
2. BLS Institute of Management - Ghaziabad, Uttar Pradesh
Post Graduate Diploma in Management (Dual Specialization)
3. Indian Institute of Commerce and Trade - Lucknow, Uttar Pradesh
Masters Diploma in Business Administration (Dual Specialization)
4. Indian School of Business Management and Administration - Mumbai, Maharashtra
Masters in Business Administration (4 semesters with dual specialization)
5. Indian Institute of Pharmaceutical Marketing - Lucknow, Uttar Pradesh
Masters Diploma in Business Administration (Dual Specialisation)- Pharma Marketing and Product Management
Masters Diploma in Business Administration (Dual Specialisation)- Pharma Marketing and Production Management
6. Jaypee Business School - Noida, Uttar Pradesh
Dual Degree in Management (DDM) - B.Tech + MBA
7. St. John the Baptists College of Special Education Kottayam, Kerala
8. Symbiosis Institute of Business Management, Pune
9. National Institute of Retail and Management, H.B.R. Layout, Bangalore
All the best!

The best government colleges offering MBA with dual specialization are

• Faculty of Management Studies, University of Delhi 
• Sydenham Institute of Management Studies, Research and Entrepreneurship Education 
• Vinod Gupta School of Management 
• Sailesh J Mehta School of Management 
• Department of Management Studies, IIT Delhi 
• Department of Management Studies, IIT Madras 

These are the best ones that requires you to score a minimum of 90 percentile in CAT to get them. 

All the very best