Notice from IT department for cash transaction 2016

Biyawerwala Hozefa I. (student) (66 Points)

09 February 2017  

my one client is carring a business of Retail Kirana Shop. He was deposited cash in bank account in demonetization period out of cash on hand on 9-11-2016. That cash reliased from nature of daily cash sales and on 9-11-16, he was deposited that amount of cash in bank.

so he get noticed from IT Department, and now i have a question, which column to apply for that. 

B.1    Cash out of earlier income or Savings

or 

B.6    Cash received from Un-Identifiable persons                                                                             (Under option nature of transaction - CASH SALES)