The Deputy Chief Minister of Delhi, Manish Sisodia, left the CBI headquarters here late on Monday evening after being questioned for the whole day in connection with the Delhi excise policy case, in which he has been named as accused number one in the FIR filed by the central probe agency.

Sisodia joined the investigation at around 11:15 am, when he reached the CBI headquarters along with scores of Aam Aadmi Party (AAP) workers who raised slogans against the BJP.