Several essential documents, furniture and electronic equipments were damaged in the fire which was brought under control by 10.20 am, the official said.
Kejriwal said the nomination will now be filed on Tuesday which is also the last day for the filing of nomination.
Also, he expressed confidence that BJP will perform well in the upcoming elections as it has fielded 'very good candidates'
Kumar was welcomed into the Congress fold by party's Delhi unit president Subhash Chopra
While Shastri joined the Congress on Saturday, Singh said he was in talks with the Shiromani Akali Dal, an ally of the BJP.
The list, which was released by Delhi BJP chief Manoj Tiwari, also included former AAP MLA Kapil Mishra and has 11 SC and four woman candidates.
Kejriwal, who is also the AAP National Convener, was speaking while inaugurating a party election office in Shakurbasti assembly constituency.
In 2015, Tomar had contested from Tri Nagar constituency on an Aam Aadmi Party ticket and the party has again fielded him from the seat.
He further said he has not yet decided if he would run independently in the Assembly polls next month
Senior Congress leaders have been asked to contest elections but Ajay Maken has left for the US as his daughter is unwell
After party chief Arvind Kejriwal and senior party leader Manish Sisodia, all eyes will be on the Babarpur constituency when the results will be announced on February 11
The four rapists were to be hanged on January 22 at 7 am in Tihar jail. A Delhi court had issued their death warrants on January 7
Accompanied by scores of party workers, Sisodia met local people to seek their blessings and urged them to re-elect him
Sisodia, 47, filed the nomination from the East Delhi's Patparganj constituency for the Delhi Assembly elections after holding a road show.
A sitting legislator and a cabinet Minister in the AAP government, Gahlot won from here in 2015 with 34.62% votes
Water from abandoned, empty houses was going to "tanker mafias", the Congress' city unit president claimed
While his self-acquired immovable properties remained roughly the same as in 2015, worth of his wife's properties increased from Rs 8.70 lakh in 2015 to Rs 65 lakh in 2020.
The movable assets of the MLA's wife, who is a tutor and career counsellor, have increased from Rs 19.73 lakh in 2015 to Rs 26.30 lakh
In the papers submitted during the nomination for 2015 Delhi polls, the senior AAP leader had declared that he owned a Maruti Swift car of make 2013
"We started working in September and held public meeting and also launched a report card. We have reached 3.5 million houses in our campaign," Gopal Rai told media.