The BJP on Monday raised a stink over recommendation of mining lease to South Korean steel major Posco for their proposed project in Orissa,alleging that the lease violated the model code of conduct. "The Chief Minister passed orders for allotting mines to Posco over an area of 2,500 hectare in Khandadhar hill in Sundargarh district on April 19,three days prior to the second phase of polling,though the model code made it clear that no major decisions can be taken in that period," said BJP leader Bijoy Mohapatra.