Here are the top 10 updates on this big story:
Mr Jain's health summary on Sunday morning showed that he weighed over 4 kg lighter than the day he began his fast. "Our team of 3 specialists - cardiologist, diabetologist and nephrologist, was checking them (protesting Ministers) morning and evening. Jain was stable in the afternoon but his ketone level was high. In the evening, he complained of headache, nausea, and breathing problems," Dr JS Passey of LNJP hospital said. "We will continue fighting for ppl of Delhi (sic)," Mr Jain had said in a tweet on Saturday.
"Last nite, Satinder Jain's ketone levels increased n he complained of headache, bodyache, difficulty in breathing n difficulty in passing urine. So, he had to be shifted to hospital. Now, he is doing well. It is 6th day of Mansh's fast. He is doing well," Arvind Kejriwal tweeted this morning.
Meanwhile on Sunday, a group of Indian Administrative Service (IAS) officers held a rare press briefing to deny charges levelled by the AAP, cited concerns about their security and said they have been "targeted and victimised" for political gains. Mr Kejriwal directly responded to the press conference by the officers, promising them security and seeking full cooperation.
In the evening, thousands of Aam Aadmi Party supporters were joined by a small team of flag-waving CPM cadres as they started a march towards the Prime Minister's Office. The protesters were stopped midway by the police, who maintained that they did not seek permission for a march. AAP claimed 45,000 people attended the march and that the police had tried to stop it by holding up buses meant to ferry supporters.
Senior CPM leader Sitaram Yechury lent support to Mr Kejriwal, saying federalism was being undermined. In a series of tweets, he said the BJP, using offices of Governors and LGs, sought to "destabilise non-BJP democratically elected state govts".
In the morning, the police clamped down on security in the heart of Delhi. Exits of five metro stations -- Patel Chowk, Udgyog Bhavan, Central Secretariat, Janpath and Lok Kalyan Marg - were shut and the police said they have "mobilized outside forces".
Appeals for PM's intervention also came from Chief Ministers of Bengal, Karnataka, Kerala and Andhra Pradesh. The Chief Ministers met PM Modi on the sidelines of a crucial policy meeting of Niti Aayog, and asked him to step in.
Mr Kejriwal has received support from almost all opposition parties except the Congress. On Sunday, besides Mr Yechuri, he received messages of support of DMK chief MK Stalin, Jharkhand leader Hemant Soren and Bihar's BJP leader Shatrughan Sinha.
The Chief Minister, who had been camping out at the Lieutenant Governor's house for a week, has accused him and the centre of backing the "strike" by the IAS officers. His government says work has been suffering for the last four months since the officers won't meet ministers or attend their phone calls.
Over the last week, no one has been allowed to meet Mr Kejriwal or his ministers, who have been camping at the Lieutenant Governor's house. The visitors turned back includes the families of the minsters, party men, four chief ministers and other political leaders. AAP has asked the Lieutenant Governor to clarify if the protesters are under arrest.
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