Invoice billing series for multiple business of proprietor

Question:

I am having regular interior business having turnover more than Rs. 20 Lakhs and having rental income from commercial complex which is exceeds the receipts of Rs. 20 Lakhs. Now i have a doubt about invoice series billing to above business.

Whether i can issue separate bill series for my interior business ( Invoice Series  like this - SM101/17-18) and another bill series ( ( Invoice Series like - RT401/17-18) for my rental receipts.