He was then appointed as the President of the Kelantan Islamic Religious and Malay Customs Council (MAIK) from 21 June 2009 to 18 March 2019.

[2] He received his complete education as follows: His PhD dissertation is about the transition between late antiquity and the early medieval period in north Etruria (400-900 AD).

The ceremony to present the letter of appointment as Tengku Mahkota Kelantan was held at Istana Negeri in Kubang Kerian on 18 October 2010.

He was conferred to the rank of First Admiral (Honorary) of the Royal Malaysian Navy (RMN) on 5 April 2013.

[7] On 19 April 2019, Tengku Fa-iz married a Swedish citizen Che Puan Sofie Louise Johansson Petra at Istana Balai Besar in Kota Bharu.