Which MBA specialization should I opt to become an entrepreneur?

Some university offer MBA in entrepreneurship. So, you may apply direct for the same.

You can become an entrepreneur by doing generic MBA which will give you exposure on all aspect of business functions. However, if you want to do dedicated course, you are advised to do MBA / PG Diploma in entrepreneurship management from institutes such as XLRI, EDI, SP Jain, NMIMS , IIMB, Amity Uni