TV personality Azwan Ali has provided the MACC with evidence alleging "extreme corruption and affluence" by a leader whom he refused to name.

However, a check on his Instagram account suggests that the documents could implicate his brother, Selangor Menteri Besar Azmin Ali, along with the latter's "cronies".

"I have brought along a lot of proof. But I will bocorkan (reveal) a little bit.

"I have arrived (at MACC) for a case about extreme corruption and affluence.

"Who (is the leader)? No comment," said Azwan after meeting with MACC assistant commissioner (operations) Azam Baki.

Azwan previously pledged to work with Umno to bring about his brother's downfall and later threatened to expose secrets about Azmin.

Azwan said his meeting with Azam lasted for about 10 minutes. 

According to him, his presence at MACC today was to fulfil his obligation as a Muslim, and was not politically motivated. 

"I have handed the evidence to MACC, and I believe the MACC will follow-up accordingly, as we know that the commission is apolitical. 

"I'm here as a Muslim, who is trying to fulfil his obligation to right the wrongs, and as a Malaysia who is obligated to defend religion, race and the country."

He claimed he had waited six months to turn in the evidence and since his presence at MACC, he had been bombarded with calls from opposition lawmakers, congratulating him.