Possible Regulation
The main reason of this error that value of "No. of Shares/Units " and "Sale-price per Share/Unit Full Value of Consideration" not entered properly in Schedule 112a capital gain entry .
How to check "No. of Shares/Units " and "Sale-price per Share/Unit Full Value of Consideration" Value
Go into transactions → Capital Gain Head → select Type of asset equity/ preference share or equity oriented mutual funds or units of the business trust and click on "sales consideration " option
In Capital Gain excel template
The value should be equivalent in Column No 13 (Sales Consideration from buyer) and Column no 4 (Sale Consideration)