FE IIFL Finance is looking to increase its co-lending book to Rs 15,000 crore by March 31 from Rs 10,576 crore currently. “The co-lending book will grow steadily from current levels,” said founder and chairman Nirmal Jain. Currently, the company has 15 co-lending partners including DCB Bank and State Bank of India. The non-bank lender’s co-lending book rose…