Tamilaga Vettri Kazhagam (TVK) leader Thalapathy Vijay is set to appear before the CBI just before Monday afternoon.
This comes after at least 40 people died and at least 60 were injured in a September 27 stampede at Tamil Nadu's Karur, where the actor-politician had been scheduled to make an appearance.
The actor, who is already under Y-category security, has sought additional security for himself from the Delhi police, ahead of the CBI questioning.
He left for Delhi early on Monday, along with a small group of party office bearers, including Nirmal Kumar, Aadhav Arjuna, Vishnu Reddy, Jagadeesh Palaniswami, C. Rajendran, and the head of his security detail, Naeem. He is expected to return to Chennai the following evening.
Notably, the CBI probe had faced pushback from the Dravida Munnetra Kazhagam (DMK)-led Tamil Nadu government in early December, which had challenged the Supreme Court's October 13 order directing the CBI to take over from the Special Investigation Team (SIT) that had been probing the case.
The state government had argued that there were "no exceptional circumstances to direct central agency intervention", making a case for the competency of the SIT.
(More details are awaited.)