Hello Sumit,
Yes, there are so many colleges in Punjab and Haryana which provides intergral course for B.com LLB. Here is the list of colleges.
1) Chandigarh University
2) Lovely Professional University
3) Rayat Bahra University
4) CT University
5) Aryans Group of Colleges
6) Amity University Manesar
7) K R Mangalam University
8) Maharishi Markandeshwar University
9) PDM University
10) GD Goenka University
Hope this information is helpful!!!!