Deductions allowable to doctors working on retainer ship

All normal professional expenses like, travelling, Conveyance, CPE seminar and conference expenses, periodicals and journals, Car expenses, Car and other depreciation (Like Computers, Cell phone etc), telephone internet and mobile charges can be claimed.

Thanks alot sir

In filing ITR 4 for the above case TDS desucted is filled in the respective sheet but in the final tax calculatuion sheet interest on non payment of advance tax is showing . Kindly help