Section 11M. Steps to be taken by persons selling or transferring any specified goods. - Except where he receives payment by cheque drawn by the purchaser, every person who sells or otherwise transfers within any specified area, any specified goods, shall obtain, on his copy of the sale or transfer voucher, the signature and full postal address of the person to whom such sale or transfer is made and shall also take such other reasonable steps as may be specified by rules made in this behalf to satisfy himself as to the identity of the purchaser or the transferee, as the case may be, and if after an inquiry made by a proper officer, it is found that the purchaser or the transferee, as the case may be, is not either readily traceable or is a fictitious person, it shall be presumed, unless the contrary is proved, that such goods have been illegally exported and the person who had sold or otherwise transferred such goods had been concerned in such illegal export :

             Provided that nothing in this section shall apply to petty sales of any specified goods if the aggregate market price obtained by such petty sales, made in the course of a day, does not exceed two thousand and five hundred rupees.