Shakuntala Gamlin took charge of the post hours after CM Kejriwal sent her a letter asking her not to do so as her appointment was "against" the rules.
The AAP government locked Principal Secretary (Services) Anindo Majumdar out of his office on Monday.
Delhi Chief Minister Arvind Kejriwal will meet President Pranab Mukherjee on Tuesday during which he will take up issues like appointments of bureaucrats and other "unilateral actions" by Lt Governor Najeeb Jung.
The Home minister is expected to meet President Pranab Mukherjee on Wednesday, a day after Jung and Kejriwal's meeting with Mukherjee.
Lt Governor Najeeb Jung on Tuesday met President Pranab Mukherjee and is understood to have apprised him of the stand-off over appointment of acting chief secretary Shakuntala Gamlin and other bureaucrats.
Delhi Chief Minister Arvind Kejriwal will meet President Pranab Mukherjee on Tuesday evening amidst escalating tensions between his government and Lieutenant Governor Najeeb Jung over the appointment of senior IAS officer Shakuntala Gamlin as acting chief secretary.
Amid the ongoing row over appointment of an acting chief secretary.
The Aam Aadmi Party government on Monday appointed Chief Minister's Secretary Rajendra Kumar as principal secretary of the services department which was promptly rejected by Lt Governor Najeeb Jung.
The AAP government appointed senior bureaucrat Arvind Ray as principal secretary.
The Centre today asked Delhi Lieutenant Governor Najeeb Jung and Chief Minister Arvind Kejriwal to sit together and find a solution to the ongoing turf war.
The ongoing row between the Arvind Kejriwal-led Aam Aadmi Party government and the bureaucracy in wake of the Delhi Chief Secretary Anshu Prakash alleging assault comes as no surprise as the two have tussled over a range of issues in the past.
Delhi Chief Minister Arvind Kejriwal on Sunday accused senior bureaucrat Shakuntala Gamlin, who was appointed as the acting Delhi chief secretary by the Lt Governor, of favouring power companies and claimed that she wanted to trick the government into signing documents which would give Rs 11,000 crore to these firms.
The major flashpoints of the last three-and-half years:
The Aam Aadmi Party-led Delhi government on Sunday completed 100 days in office, a period marked by its ongoing bitter tussle with the Lt Governor, a split in the party and implementation of a slew of its electoral promises, including slashing power tariff by 50 per cent and providing free water of up to 20,000 litres per month.
In the midst of a bitter power tussle, Delhi Chief Minister Arvind Kejriwal on Tuesday met Lt Governor Najeeb Jung and discussed functioning of the elite Anti-Corruption Bureau, a day after Delhi high court ruled that it has authority to probe central government officials, including Delhi police personnel.
The decision to hold the special session was taken at a Cabinet meeting presided by Chief Minister Arvind Kejriwal. The assembly was due to meet in June for the passage of the Budget.
Chief Minister Arvind Kejriwal asks Delhi Lt Governor Najeeb Jung to work "within the confines" of Constitution.
In a letter to Modi, Kejriwal accused the Centre of trying to run the Delhi administration.
Delhi high court on refused to stay two notifications of the Centre which had taken away the power of the city government's Anti-Corruption Branch to prosecute officials of Union government, saying a vacation court cannot grant the relief sought by a fresh PIL.
Delhi Chief Minister Arvind Kejriwal and Lt Governor Najeeb Jung on Tuesday took their bitter fight to President Pranab Mukherjee and accused each other of violating the Constitution and overstepping their respective jurisdictions.
Amid the escalating Lieutenant Governor-Chief Minister feud, the Centre on Friday backed Delhi LG Najeeb Jung making it clear that it was not mandatory for him to consult Chief Minister Arvind Kejriwal on matters like appointment of bureaucrats.
The Delhi government has sought opinion over the issue of powers of the Lt Governor to appoint a chief secretary from eminent lawyers Rajeev Dhavan and Indira Jaising, who have supported its stand asserting that the LG has no independent discretion in the matter.
Chief Minister Arvind Kejriwal on Monday said the Delhi high court judgement that his government's Anti-Corruption Branch has the jurisdiction to arrest policemen is a "huge embarrassment" for the Centre.
A tussle between the Delhi government and the Lt Governor has left bureaucrats vulnerable to sudden transfers.
Delhi power minister Satyendra Jain in an interview to Rediff.com contributor Upasna Pandey, says thatdiscoms will be able to cater to the peak power demand of up to 6,500 MW, provided residents cooperate by reducing peak time usage.
The war of words over appointment of Delhi's acting chief secretary continued on Sunday with Minister of State for Home Kiren Rijiju accusing the Aam Aadmi Party government of indulging in character assassination of a lady Indian Administrative Service officer from the Northeast and "disobeying" the Constitution.
The AAP government on Tuesday moved a resolution against the Centre's notification giving absolute powers to the Lt Governor.
In a frontal attack on the Modi government, Chief Minister Arvind Kejriwal on Friday accused it of trying to run Delhi through "backdoor" to protect the corrupt and said it had "back-stabbed" the people of the city by issuing a notification "siding" with the Lt Governor.
'There are no women in the Delhi government and it shows how much the government is concerned about women's issues,' says DCW chairperson Barkha Singh.
Tuki met Governor Tathagata Roy on Friday and sought the postponement of the floor test.