Obc creamy layer

My father works in BCCL which is a PSU and his income is greater than 6 lakhs. A) As per O.M No. 36012/1/2013 in Para 3 it is mentioned where equivalence of post of PSUs with central government is not made, Income/wealth test will be applicable.I contacted the HR of the BCCL enquiring if there is any equivalence of posts with central government. And they said that there is no such comparision. And as per the para 10, for the income test it is mentioned that income from salary or from agricultural land will not be clubbed. B)But, In para 9 it is mentioned that for the PSUs where equivalence of posts to central govt. is nt made then , either income from salary or income from other sources exceeds 6 lakhs then I will be in creamy layer. The problem is according to A I dont come under creamy layer and with B , I come under creamy layer. I am very confused with both the interpretations.I would request you to clarify it. Thanking you in anticipation. Regards, Abhishek Gaurav.