Are there any other constitutional provisions that protect the independence of Parliamentary proceedings?
Yes, there are other constitutional provisions that protect the independence of Parliamentary proceedings. These include:

Article 120(2) which states that after a period of fifteen years from the commencement of the Constitution, business in Parliament shall be transacted only in Hindi, unless Parliament by law otherwise provides. This emphasizes the importance of preserving the official language and maintaining its prominence in Parliamentary proceedings.

Article 121 restricts discussion in Parliament with respect to the conduct of any Judge of the Supreme Court or a High Court in the discharge of their duties, except upon a motion for presenting an address to the President praying for the removal of the Judge. This protects the independence and impartiality of the judiciary by limiting discussions that could potentially interfere with their work.

Article 122(1) states that the validity of any proceedings in Parliament shall not be called into question on the ground of any alleged irregularity of procedure, emphasizing the importance of ensuring the smooth functioning and independence of Parliament without external interference or scrutiny.

Article 122(2) further protects the independence of Parliament by stating that no officer or member of Parliament in whom powers are vested for regulating procedure, conducting business, or maintaining order shall be subject to the jurisdiction of any court in respect of the exercise of those powers. This ensures that decisions made within the Parliament cannot be challenged in courts, thereby protecting its autonomy and decision-making processes.