is it possible to change the cash and bank figure after revising return?

Yes, it can be revised, if the loan amount relates to the financial year.

so sir ...if in this case we are not required to file return in itr 4... ?

now I file the return in itr3 and will revise it from tomorrow onward. and can also introduce there bank loan and bank acc...coz now due to time lacking we are not able to go through all the details of bank loan and bank passbook ????