The arrest of a senior leader for alleged corruption has sparked nationwide protests from party members in Delhi, the capital of India.
The deputy chief minister of Delhi, Manish Sisodia, was detained by a federal agency on Sunday due to alleged violations of the city's alcohol policy.
The allegations are refuted by him and his Aam Aadmi Party (AAP).
On Monday, Mr. Sisodia is scheduled to appear in court.
In advance of the protest, the Delhi Police has deployed personnel throughout the city and blocked off a number of roads.
According to the Central Bureau of Investigation (CBI) in India, Mr. Sisodia was detained in connection with an investigation into Delhi's liquor policy, which saw the opening of new liquor stores that were later forced to close after the Delhi government abandoned the program.
Despite being presented with evidence to the contrary, "he gave evasive answers and did not cooperate [with] the investigation," it said on Sunday.
But according to the AAP, Mr. Sisodia is innocent and his arrest was the result of "dirty politics," not criminal activity.
The Bharatiya Janata Party (BJP), which is led by Prime Minister Narendra Modi and is also the main opposition party in Delhi, is the federal government to which the CBI answers.
In the capital, there have been a number of disagreements between the AAP and the BJP. The AAP claims that the BJP uses federal institutions to obstruct its efforts, while the BJP has repeatedly accused the AAP of corruption.
Satyendra Jain, the health minister for Delhi, was detained last year on suspicion of money laundering. He has denied the accusations, but a Delhi court denied his request for bail, so he remains in jail.
For the AAP, which was born out of a significant anti-corruption movement more than ten years ago, questions of corruption are a sensitive subject.
It is currently in power in Delhi and Punjab and is preparing to run in additional state elections this year. It has been attempting to establish itself as a major opposition force to the BJP.
After being interrogated at the CBI headquarters for roughly eight hours on Sunday evening, Mr. Sisodia was taken into custody. He had visited Raj Ghat with other AAP leaders before arriving at the office to pay his respects at the Mahatma Gandhi memorial. .
He had also pleaded with party members to look after his family in a speech, warning that he "might have to go to jail for seven-eight months.".
Arvind Kejriwal, the chief minister of Delhi and an AAP leader, tweeted after his arrest: "We will take care of your family Manish, don't worry.
. "
