Delhi Chief Minister Arvind Kejriwal continued his attack on the ruling BJP government from the vanguard of his Twitter account on Friday, claiming that the Central Bureau of Investigation (CBI) has been instructed to "finish opposition parties".

"A CBI officer told me yest that CBI has been asked to target all opp parties n finish those who don't fall in line (sic)," Kejriwal tweeted at 8:14 am on Friday, 18 December. 

Kejriwal made the allegation while sharing a tweet by a journalist who cited a source claiming that Prime Minister Narendra Modi had 'become weak' after BJP's defeat in the Bihar assembly elections and wanted to ensure other parties were also weakened. 

The Delhi CM's fresh allegations come after three days of intense political fighting in the capital that began this week after the CBI raided the office of Kejriwal's Principal Secretary Rajender Kumar. 

Kejriwal had lashed out at Modi after the CBI raid, claiming that the investigation agency was instructed to look at the CMO files. He had called Modi a 'coward' and a 'psycopath' in a post on Twitter. 

Kejriwal also accused Finance Minister Arun Jaitley of a corruption scandal in the Delhi cricket board, DDCA, which the latter had headed from 2000 to 2013. 

In response to the Delhi CM's tweet on CBI being instructed to target opposition parties, Minister of State in the Prime Minister's Office (MoS PMO) Jitendra Singh asked him to reveal the name of the CBI officer. 

"When Kejriwal says that a certain CBI officer comes and shares information with him, is this what is expected from a CM? Kejriwal should reveal the name of the CBI officer and give evidence," Singh told ANI news agency on Friday.