My spouse; who is a dependent, had done his B.Sc Engineering from Bangladesh, and after that, he did PGD (Post Graduate Diploma) and M.Sc from London. He applied for ECA through WES in 2014, his results came as Bachelor's degree (4years), and Master's degree. There is no mentioning or credential equivalency for his PGD. . Is it mandatory to do the equivalency of PGD, or will the Master's degree equivalency will do for him, as he is the spouse of the main applicant?