Who was sworn in as the Chief Minister of Manipur in 2017 after the state assembly elections?

Introduction / Context:
Manipur, a state in north eastern India, saw a significant political change after the 2017 assembly elections. A new Chief Minister was sworn in, marking a shift in party rule in the state. This question tests whether you can correctly recall that N. Biren Singh became the Chief Minister of Manipur in 2017, and not confuse him with leaders from earlier periods.

Given Data / Assumptions:

• The state is Manipur.
• The year is 2017, following the state assembly elections.
• The options list names of political leaders associated with Manipur politics.
• We assume awareness of recent political changes in north eastern states.

Concept / Approach:
After the 2017 assembly elections in Manipur, N. Biren Singh was sworn in as Chief Minister. He became the first Chief Minister from the Bharatiya Janata Party in the state. Other names listed, such as M. Koireng Singh or M. Alimuddin Singh, are associated with earlier political eras. Recognising the timeline and party context helps identify the correct answer.

Step-by-Step Solution:
Step 1: Focus on the year 2017 and the state of Manipur. Step 2: Recall that in this period, N. Biren Singh emerged as the Chief Minister after coalition arrangements. Step 3: Examine the options and identify N. Biren Singh by name. Step 4: Recognise that other leaders mentioned served as Chief Ministers at different times or held different roles. Step 5: Therefore, the correct answer is N. Biren Singh.

Verification / Alternative check:
A quick cross check is to associate N. Biren Singh with news about a new government in Manipur supported by a national party. Later policy stories and news about development and law and order in Manipur often mention N. Biren Singh as Chief Minister. This continuity from 2017 onwards confirms that he is the leader referred to in the question.

Why Other Options Are Wrong:
M. Koireng Singh was an earlier Chief Minister of Manipur in the twentieth century and is not linked to the 2017 change. Longjam Thambou is not the leader who assumed office as Chief Minister in 2017. M. Alimuddin Singh is associated with past political phases and not with the 2017 formation of government.

Common Pitfalls:
Students sometimes mix up older and newer Chief Ministers, especially when multiple names end with Singh. A good strategy is to organise your polity notes by state and decade, listing major political shifts and Chief Ministers. For Manipur, mark 2017 as the year when N. Biren Singh became Chief Minister so that you can recall it quickly in examinations.

Final Answer:
In 2017, N. Biren Singh was sworn in as the Chief Minister of Manipur.