Former second finance minister Ahmad Husni Hanadzlah's long list of questions related to 1MDB in the Dewan Rakyat last night suggests he was kept in the dark all this while, two opposition MPs say.

"Wouldn't he have known the answers since he was second finance minister during the material time? Or does it mean key information about 1MDB was kept from him?

"1MDB seemed to be a top secret operation that only one person in cabinet - the PM who is also the finance minister - knows about," said Petaling Jaya Utara MP Tony Pua when met at the Parliament lobby today.