2. Dear Atul,
First of all I would like to amend your query, infact it is Cenvat Credit Rule, 2004 and not 2002. Now coming to your query as per Rule 8 of the CCR, 2004 :
"The Deputy Commissioner of Central Excise or the Assistant Commissioner of Central Excise, as the case may be, having jurisdiction over the factory of a manufacturer of the final products may, in exceptional circumstances having regard to the nature of the goods and shortage of storage space at the premises of such manufacturer, by an order, permit such manufacturer to store the input in respect of which CENVAT credit has been taken, outside such factory, subject to such limitations and conditions as he may specify:
Provided that where such input is not used in the manner specified in these rules for any reason whatsoever, the manufacturer of the final products shall pay an amount equal to the credit availed in respect of such input. "
As far as the time period is concerned which is your main query, I am of thhe view that there is no time period specified in the law, rather it is upto the discredtion of the jurisdictional AC or DC, who in his order as described above in Rule may specifiy the period as per your requirement or as he finds fit according to demand of nature of goods.