Which year was declared National Mathematics Year in India as a tribute to mathematician Srinivasa Ramanujan?

Introduction / Context:
India has honoured many great scientists and mathematicians through national celebrations and special commemorative years. Srinivasa Ramanujan, a world famous Indian mathematician, made deep contributions to number theory and other areas of mathematics. To celebrate his legacy and inspire interest in mathematics, one particular year was declared National Mathematics Year in India. This question asks you to identify that year.

Given Data / Assumptions:

The question is about National Mathematics Year in India.
The year was chosen as a tribute to Srinivasa Ramanujan.
The options are 2012, 2013, 2011, and 2010.

Concept / Approach:
Ramanujan was born in 1887. The year 2012 marked the one hundred and twenty fifth anniversary of his birth. To commemorate this milestone and to promote the study of mathematics, the Government of India declared 2012 as National Mathematics Year. Many seminars, competitions, and educational programmes were organised during this year. Recognising this connection between the anniversary year and the declaration helps you choose 2012 from the options.

Step-by-Step Solution:
Step 1: Remember that Srinivasa Ramanujan was born in 1887. Step 2: Calculate the 125th birth anniversary: 1887 plus 125 equals 2012. Step 3: Recall that the Government of India declared that anniversary year as National Mathematics Year. Step 4: Check the options and identify 2012 as one of the choices. Step 5: Select 2012 as the correct answer.

Verification / Alternative check:
You can verify by recalling that 2012 saw several national events dedicated to mathematics, including special lectures, workshops, and competitions. Educational institutions were encouraged to highlight Ramanujans life and work, and many exam preparation materials mention that 2012 was marked as National Mathematics Year in his honour. The surrounding years 2010, 2011, and 2013 do not align with the 125th anniversary, which further confirms that 2012 is correct.

Why Other Options Are Wrong:
2013: Does not correspond to a major Ramanujan anniversary and was not declared National Mathematics Year. 2011: One year before the 125th birth anniversary and not designated for this specific tribute. 2010: Also not linked to any major Ramanujan related anniversary or National Mathematics Year declaration.

Common Pitfalls:
Some candidates may confuse the exact anniversary year or miscalculate the gap between 1887 and the commemorative year. Others may simply guess a date close to 2012 without doing the basic arithmetic. To avoid such mistakes, remember both the birth year 1887 and the special role of the 125th anniversary. Adding 125 gives 2012 directly and makes it easy to link that year with National Mathematics Year in exam questions.

Final Answer:
National Mathematics Year in India, declared as a tribute to Srinivasa Ramanujan, was the year 2012.