Rajya Sabha witnessed unusual scenes on Sunday as the Upper House of Parliament broke into chaos over Centre's farm-related bills.

While the BJP and its allies are claiming that Opposition MPs disrupted the house, Opposition leaders have accused Rajya Sabha deputy chairman Harivansh Narayana Singh of failing to adhere to established parliamentary procedure.The Farmers (Empowerment and Protection) Agreement on Price Assurance and Farm Services Bill, 2020 and Farmers' Produce Trade and Commerce (Promotion and Facilitation) Bill, 2020 were brought by the central government along with the Essential Commodities (Amendment) Bill, 2020 for discussion in the Lok Sabha.

All three bills were brought to replace Ordinances signed into effect by the Union Cabinet earlier this year.Over the past week, the two farm-related bills have led to widespread protests by farmer organisations in Punjab, Haryana and other parts of the country.BJP's NDA ally Sukhbir Singh Badal of Shiromani Akali Dal (SAD) announced in Lok Sabha on Thursday that if the Centre does not refer the two bills to a select committee, party leader Harsimrat Kaur Badal will resign from Prime Minister Narendra Modi's cabinet.

After the bills were passed in Lok Sabha, Harsimrat Kaur Badal went ahead with her resignation.

Sukhbir Singh Badal and SAD parliamentarians have also sought time to meet President Ram Nath Kovind.Here are 10 key developments from Parliament: 1.

Discussion on the farm-related bill began in Rajya Sabha at 9.30 am and went on for over three hours.

Union Minister of Agriculture and Farmers' Welfare Narendra Singh Tomar responded to various concerns voiced by MPs.2.

A little over 30 minutes into Minister Tomar's response, Opposition MPs objected to the farm-related bills and the Rajya Sabha was adjourned for 10-15 minutes amid disruptions.3.

Once the house resumed at 1.45 pm, clause-by-clause consideration of the bills was being taken up despite the ruckus created by Opposition MPs.

Both bills were subsequently passed.4.

Visuals from the Rajya Sabha show Opposition MPs assembling in the well of the house, climbing on top of the RS staffers' table and sloganeering against deputy chairman Harivansh Narayana Singh and the central government.

Some videos also show Trinamool Congress MP Derek O'Brien holding a rule book to the deputy chairman.5.

As many as 12 Opposition parties have decided to move a no-confidence motion against Rajya Sabha deputy chairman Harivansh Narayana Singh, alleging he did not allow a division on farm-related bills and did not gather the consent of the House before extending the session to pass the bills.

The central government is reportedly seeking action against the MPs for misbehaving with the deputy chairman.6.

A high-powered committee later met Rajya Sabha Chairman Vice President Venkaiah Naidu at his official residence to discuss the issue.7.

Cabinet ministers led by Defence Minister Rajnath Singh held a press conference on Sunday to quell rumours about the two farm-related bills and respond to the events in Rajya Sabha.

While condemning the actions of Opposition MPs, Rajnath Singh said, "I have a message for the farmers- the two bills will in no way end MSP (Minimum Support Price) or APMCs (Agricultural Produce Market Committee mandis)."8.

This press conference was followed by another organised at the Indian National Congress (INC) office.

Party spokesperson Randeep Singh Surjewala accused the Centre of backstabbing the farmers while Congress Rajya Sabha MP KC Venugopal said the ruckus in the Upper House was due to the deputy chairman's alleged failure to adhere to parliamentary procedure and traditions.9.

On the other hand, the Lok Sabha went on beyond midnight owing to Zero Hour.

Earlier in the day, Union Health Minister Dr Harsh Vardhan participated in a discussion on the Centre's handling of the Covid-19 pandemic where Lok Sabha MPs voiced their concerns, suggestions and complemented frontline workers and the government for their dedication.10.

Lok Sabha passed four bills, namely Bilateral Netting of Qualified Financial Contracts Bill (2020), Salaries and Allowances of Ministers (Amendment) Bill (2020), Rashtriya Raksha University Bill (2020), and National Forensic Science University Bill, 2020.

The Foreign Contribution (Regulation) Amendment Bill, 2020 was also introduced in the Lok Sabha on Sunday.