Will it be okay if someone starts a construction business for private & government tenders as a builder or real-estate developer after BBA?

Hii Gaurav, BBA has no direct relationship between tenders business and like that. In BBA, you will get the overview of a business structure. There is nothing wrong in doing BBA, however, you have to research from your side also.

Business does not require any particular degree. It's all in the skill of managing money. However, to better manage your business you could opt for BBA and if possible, an MBA later on.