Step 1: Understanding the Concept:
Chapter VI of the Indian Penal Code, 1860, deals with offences against the State. These are considered the most serious crimes as they threaten the very existence and authority of the State.
Step 2: Detailed Explanation:
Section 121 of the IPC defines the offence of "Waging, or attempting to wage war, or abetting waging of war, against the Government of India."
The punishment for this offence is prescribed in the same section. It states that whoever commits this offence shall be punished with death, or imprisonment for life, and shall also be liable to a fine.
The question asks for the maximum punishment. Between imprisonment for life and the death sentence, the death sentence is the maximum punishment available for this offence.
Step 3: Final Answer:
The maximum punishment for waging war against the Government of India under Section 121 of the IPC is the death sentence.