Can one person register two companies in india?

Yes, one person can run two businesses i.e. Proprietorship and Partnership firm at the same time with a condition that the partnership deed does not bar such type of business. Normally there is no such bar of doing other business but running a business with same nature of object can cause difficulties.

So there must be clarity in the partnership deed regarding such clause to avoid any discrepancy.

If you are looking for registering your business under Sole Proprietorship or Partnership Firm.

Yesis the sole answer to your query. A person can be a partner to as as may many partnership as he wish and he is also free to be a proprietor simultaneously to the firms and companies inumberable.