Is accepting business payment in Saving a/c right?

I am sole proprietor of my firm.

I don't have upi enabled in my current account . That is why some of my customers(due to ease) directly deposit business payment into my Saving bank a/c via UPI transactions.

Is accepting such business payment in saving bank a/c legal and allowed?

Is there any limit upto how much amount of such business UPI payments can I accept in my saving a/c?