At a rally, Yadav claimed the two deputy chief ministers - Keshav Prasad Maurya and Brajesh Pathak - wanted to become chief minister, ahead of the Mainpuri and Rampur bypolls in Uttar Pradesh.
District Magistrate Sujit Kumar on Thursday said Sachin's father Ram Naresh was being provided free treatment at a government hospital.
The BJP high command is believed to be in the process of selecting the state chief after Swatantra Dev Singh sent his resignation to party president JP Nadda on July 27.
He also dismissed the possibility of an opposition alliance posing a challenge to the BJP, saying such efforts in the past have yielded no result.
Uttar Pradesh minister and the BJP's state unit president Swatantra Dev Singh on Saturday hit out at Yadav, alleging had he become chief minister the state would have been looted.
As Rahul Gandhi appeared before the ED for questioning, the Congress held protests across the country, alleging 'misuse' of the agency.
Maurya alleged that the Congress leaders have started meddling with the country's 'peace' and 'identity' after the ED unveiled their wrongdoing.
Chief Minister Yogi Adityanath had to intervene, saying unparliamentary words and threats should not be made part of the proceedings as it would set a wrong precedent.
When asked about the SP chief's allegation, Keshav Prasad Maurya said Akhilesh Yadav is doing cheap politics over the incident.
The controversy should not have been invited by organising such a programme on the BHU campus, Keshav Prasad Maurya said.
On rising inflation, the Deputy CM said that it was due to the Ukraine crisis and the government was taking necessary steps to deal with it.
With the aim of speeding up development in Uttar Pradesh, Chief Minister Yogi Adityanath had recently in a meeting with his cabinet members brainstormed on a 100-day action plan.
UP Deputy CM slams Akhilesh for statement on attack in temple premises, calls it 'Muslim appeasement'
Maurya's allegation against Yadav comes a day after he said that the attacker had 'psychiatric problems and bipolar issues' and that the BJP was giving it 'undue importance'.
Yogi Cabinet 2.0: UP CM keeps 34 departments, Keshav Maurya loses PWD, gets Rural Development Minitsry
Other Deputy CM Brijesh Pathak, the only face from state capital Lucknow, has been entrusted with the responsibility of all the streams of health department.
If sources are to be believed, Yogi discussed formation of the ministry and details of preparations for the swearing-in to be held in Lucknow with much fanfare.
If the highly-placed BJP sources are to be believed, Maurya, in all probability, will be retained as the deputy CM in Yogi cabinet 2.0.
For the post of Deputy Chief Minister, the names of Swatantra Dev Singh, Baby Rani Maurya, Brijesh Pathak and Keshav Prasad Maurya are in talks.
Maurya lost the assembly poll contest in Sirathu to Samajwadi Party leader and Union Minister Anupriya Patel's sister Pallavi by 7,337 votes.
The final phase of the Uttar Pradesh polls was held on Monday, marking the end of the voting process spread over two months in the crucial state.
Uttar Pradesh Chief Minister Yogi Adityanath also reacted on this controversy saying that the person who was behind the partition of India cannot be accorded respect here.