sorry my bro, this may sound disappointing. They have already concluded the recruitment, assessment and they have taken the people they wanted. As a matter of fact, my friend has collected his offer letter which is mouthwatering. The process was quite fair cos i was part of it i mean i was called for the assessment but i wouldnt know why they didnt call you for interview though you passed. Take it in good fate and move on, i see better opportunities coming your way.