Explanation:

- Section 121 of IPC: This section deals with waging, or attempting to wage war, or abetting the waging of war, against the Government of India. It specifies punishment for those engaging in such acts.

- Section 122 of IPC: Covers the collection of arms, etc., with the intention of waging war against the Government of India.

- Section 123 of IPC: Concerns concealing with intent to facilitate the design to wage war.

- Section 124 of IPC: Relates to assaulting President, Governor, etc., with the intent to compel or restrain the exercise of any lawful power.