The chief minister of India’s capital, Delhi, Arvind Kejriwal has alleged that his office has been raided by the country’s federal investigation agency, reported BBC.

Arvind Kejriwal blamed Prime Minister Narendra Modi for the “raid”, calling him a “coward and a psychopath”.

“When Modi couldn’t handle me politically, he resorts to this cowardice,” he added.

Officials from the Central Bureau of Investigation (CBI) have denied the allegations.

“It is not a raid on Arvind Kejriwal’s office, it was a raid on Rajender Kumar, principal secretary to the CM [chief minister],” CBI spokesperson Devpreet Singh told BBC Hindi.

However, Mr Kejriwal has accused the CBI of “lying”.

India’s Finance Minister Arun Jaitley told the upper house of parliament, the Rajya Sabha that the “raid has nothing to do with Mr Kejriwal”.

Parliamentary Affairs Minister Venkaiah Naidu added that it had become a “fashion” for Mr Kejriwal to blame the prime minister.

Mr Kejriwal’s local government has been locked in a tussle for power with the federal government since he was elected to power in February.

Unlike in much of India, Delhi’s Aam Aadmi Party (AAP)-run local government does not have absolute administrative powers over the state. Control of the state’s police force, land, and law and order rests with the BJP-controlled federal government.

CBI sources said that a team of its officials went to the Delhi Secretariat, which houses office of Kejriwal and other ministers in the morning and conducted the search in the third floor of the building.

The CBI said it has registered a case against Rajendra Kumar on allegations of abusing his official position by “favouring a particular firm in the last few years in getting tenders from Delhi government departments.”

“After taking warrants, searches are being conducted in the office and residence of Rajendra Kumar. The allegations against Rajendra Kumar were raised by Ashish Joshi, former member secretary, Delhi Dialogue Commission,” the agency said. . The third floor of the secretariat also houses Kejriwal’s office.

Party members have tweeted, calling it the “darkest day in democracy”.

BJP condemned Kejriwal for the kind of language used to criticise Modi and said it was “absolutely unacceptable”.

“Does he want to protect the corrupt?,” Javedekar asked, adding, “Instead of taking action against the corrupt, he is accusing the prime minister. This is absolutely unacceptable.”