Under the Lok Sabha's Rules of Procedure, a short-duration discussion on a matter of urgent public importance can be held without a formal motion or voting under:

Rule 193 of the Rules of Procedure and Conduct of Business in the Lok Sabha allows a short-duration discussion on a matter of urgent public importance without a formal motion, and no vote is taken at the end. The source says the Constitution provides for this, but it is a rule of the House.

Features of Rule 193:

• A member gives notice of the matter he wants to raise.
• If the Speaker admits it, a time is fixed, usually up to two and a half hours.
• The minister concerned replies at the end of the discussion.
• There is no voting, so the government does not face any risk of defeat.

Why it is used:

• It allows the House to discuss serious issues, such as natural disasters, price rise, communal violence or important policy developments.
• The opposition often demands discussions under Rule 184 instead, because that involves voting, while the government prefers Rule 193.

Comparison with Rule 184:

• Rule 184 allows discussion on a motion followed by voting.
• It is used when the opposition wants the House to formally express its view.

Similar rule in the Rajya Sabha:

In the Rajya Sabha, short-duration discussions are held under Rule 176.

Other important Lok Sabha rules:

• Rule 198: no-confidence motion.
• Rule 377: raising matters that are not points of order or questions, by submitting a brief written statement.
• Rule 57: adjournment motion on a definite matter of urgent public importance.
• Rule 197: calling attention notices.

Who makes these rules:

Under Article 118, each House makes its own rules for regulating its procedure and the conduct of its business.

Importance:

• Such rules give Parliament flexible tools for discussing issues, apart from bills and budgets.
• They help the opposition hold the government accountable.

Why not the other options?

• ✗Rule 184 provides for discussion with voting.
• ✗Rule 198 deals with the no-confidence motion.
• ✗Rule 377 deals with raising matters by written statement.