The Central Bureau of Investigation raided Delhi chief minister Arvind Kejriwal’s office today. The agency sealed the office of the chief minister the Delhi Secretariat even as the Aam Aadmi Party chief tweeted early on Tuesday morning, calling prime minister Narendra Modi a ‘coward’ and a ‘psychopath’.

“When Modi couldn’t handle me politically, he resorts to this cowardice,” the CM wrote on the microblogging site, in what may become the next flash point in a prolonged tussle between the Centre and the Delhi government.

CBI lying. My own office raided. Files of CM office are being looked into. Let Modi say which file he wants?

— Arvind Kejriwal (@ArvindKejriwal) December 15, 2015

A CBI spokesperson denied the raid was targeted at Kejriwal and said it was conducted at principal secretary Rajendra Kumar's office. Kejriwal contested that claim with another tweet and said the investigating agency was lying.

The CBI raid is bound to intensify the face-off between Kejriwal and the central government. Kejriwal has often hit out at the Narendra Modi government, especially over administrative control of the capital.

Modi is a coward and a psycopath

— Arvind Kejriwal (@ArvindKejriwal) December 15, 2015

The latest war of words had come over the weekend in connection with the controversial demolition of a slum settlement in outer Delhi’s Shakur Basti that left hundreds of poor people out in the biting cold.The Delhi chief minister also called Prime Minister Modi a ‘psychopath’ in another tweet:

When Modi cudn't handle me politically, he resorts to this cowardice

— Arvind Kejriwal (@ArvindKejriwal) December 15, 2015

Since it came to power with a thumping majority last February, the AAP administration has often accused the Centre of trying to run the city by proxy using lieutenant governor Najeeb Jung.

CBI raids my office

— Arvind Kejriwal (@ArvindKejriwal) December 15, 2015

Meanwhile, BJP on Tuesday came down heavily on Kejriwal for calling Modi a 'coward' and blaming him for CBI raids.
"Arvind Kejriwal's 'coward' remark for popular PM Modi is totally uncalled for, unfortunate and shameful," Senior BJP leader Ravi Shankar Prasad said.

"Arvind Kejriwal should apologise to PM for using words like 'coward," Ravi Shankar Prasad added.

On the CBI raids, Ravi Shankar Prasad said, "Delhi CM's office was not raided; CBI conducted raids after proper search warrant from the competent court."

Citing corruption allegations against Delhi CM's secretary Rajendra Kumar, the BJP leader said, "Charges against him are very serious as he favoured one private firm - Endeavour Systems - by giving a number of contracts when he held important portfolios like secretary (IT), secretary (Health), commissioner (trade and tax) to name a few.

"Should we presume that Kejriwal did not undertake any due diligence while appointing the secretary," Prasad asked.