is pan compulsory for getting one time refund

asgari (various) (35 Points)

04 August 2008  
dear everybody, I would like to the following ? an woman who got mact claim for approx 4 lac and company had deducted tds from it. now this woman has no any other income so he does not have it pan no. to get his income tax wrongly deducted what form he has to fill and whether it has to first obtain it pan no. please help asgari