Sameer wants to contest Lok Sabha elections in India. At what age can he do that?

25 years

The correct answer is Option 2 - 25 years

To contest Lok Sabha elections in India, an individual must meet the following eligibility criteria:

Citizenship: The candidate must be a citizen of India.
Age: The minimum age requirement to contest Lok Sabha elections is 25 years. This means that Sameer must be at least 25 years old on the date of filing his nomination papers.
Voter Registration: The candidate must be a registered voter in any parliamentary constituency in India.

Therefore, Sameer can contest Lok Sabha elections in India once he reaches the age of 25 years.