Refund of TDS under section 195 allowed to deductor subject to approval, undertaking, adjustment and time limit. Refunds of TDS under section 195 may be given to the person who deducted and deposited the tax where income has not accrued to the non resident or where no or lesser tax is due, subject to prior approval of the Chief Commissioner or Director General; no interest is admissible; the Assessing Officer may adjust refunds against direct tax liabilities and must ensure corresponding expense disallowance and prescribed undertakings or indemnities; a two year limitation for claims applies.