NEW DELHI — The police on Friday began questioning a self-styled Indian “godman” who was seized after security forces stormed his compound in northern India, where he had barricaded himself with about 15,000 followers for more than a week. An extensive cache of weapons was found inside, the police said, including ammunition stored underneath the “throne” from which he preached.

The guru, Baba Rampal Maharaj, 63, who claims to be the reincarnation of a 15th-century mystic poet, was arrested on Wednesday after a violent clash at his 12-acre compound in the city of Barwala in Haryana State. His supporters, lining the ramparts, pelted police officers with stones as they tried to enter, at one point using a bulldozer to break down a wall.

Scores were injured, and six of Mr. Rampal’s followers died under uncertain circumstances during the standoff.

Mr. Rampal had repeatedly resisted summonses to respond to charges of murder and incitement to violence dating to 2006, failing to show up in court 43 times. His defense lawyer, who appeared in High Court in Chandigarh, the state capital, on Thursday, argued that Mr. Rampal had been unable to appear earlier because he was being held hostage inside his compound, or ashram. Mr. Rampal told reporters that allegations that thousands of people had been kept at the ashram against their will were false.