So, the public funds are really being used for the wedding

Nooryana Najwa and her fiancé Daniyar Nazarbayev exchanged their engagement vows in a grand ceremony attended by family, friends, diplomats and royalty. Daniyar is the son of the Kazakhstan President Nursultan Nazarbayev.
Gracing the ceremony today were Yang di-Pertuan Agong Tuanku Mizan Zainal Abidin and Raja Permaisuri Agong Tuanku Nur Zahirah, Sultan of Pahang Sultan Ahmad Shah and the Sultanah of Pahang Hajah Kalsom, Tengku Mahkota Pahang Tengku Abdullah and Raja Muda of Perak Raja Nazrin Shah.
So, this is what Najib's visit to Kazakhstan recently all about. The purpose of his visit is to call on his future in-law President Nazarbayev in order to express his daughter's intention to wed the president's son.
You had used the public funds for your "risik-risik" and your daughter's wedding. And now you are using the royalty to protect the entire situation in order to prevent our people and the parliament from scrutinizing the expenses that the prime minister's department had approved for this occasion, because if people were to do that you will then accuse them of "derhaka" just because the royalty had in fact graced the event.
A very cunning idea indeed!