Cash receipts received

A Gst registered dealer sales and purchases transcations upto date .dealer purchases of site value Rs: 16 lacs as on date:20-12-2020.present cash on hand balance RS:9 lacs asper books as on date:20-12-2020. question: dealer cash balance differnce Rs: 7 lacs amount 1.option: cash loan from different un secured loans received(each one rs:20,000/-) 2. option: credit sales different customers(1 lac*7 ) cash received from customers correct method.