Sir, how to correct the date of challan?

Write to ITO (TDS) of your jurisdiction, along with a copy of the challan, for the rectification.

Sir,

One more question in PL Account is it possible that the Total amount of opening Stock and purchase amount is smaller than sales amount.

Quite possible, indication of greater profits, provided no much difference in closing stock.

Actually you should prepare Trading account first for better analysis of gross profits.

Sir

I prepare PL account where the Opening stock is Rs400000 and purchase made near RS1100000. In which  he mades a sales near of RS 1700000,with closing stock in hand.So this is quite possible or not.This  data provide by a proprietor.

Simple formula:: (Sales + closing stocks) --- (opening stock + Purchases) = Gross profit. (assuming no other factors)

In the present example, taking closing stock as Nil, Gross profit seems to be 2.00 Lakhs.

Additional GP to the extent of Closing stock.

So, Quite natural.

Thank  you much