Step 1: Understanding the Question:
We need to recall the exact start date of India's Tenth Five Year Plan.
Step 2: Key Formula or Approach:
India's Five Year Plans always begin on the first day of a financial year, so we recall which financial year the Tenth Plan covers.
Step 3: Detailed Explanation:
The Tenth Five Year Plan ran from 2002 to 2007, covering the financial years starting April 1, 2002 and ending March 31, 2007.
Since Indian Five Year Plans always start on April 1 of their first year, the Tenth Plan took off on April 1, 2002, not on July 1 or October 1, which are not the start of any Indian financial year, so options (2) and (3) are wrong.
April 1, 2003 would actually fall within the second year of the Tenth Plan, not its starting date, so option (4) is wrong too.
Step 4: Final Answer:
The Tenth Plan took off on April 1, 2002, so the answer is option (1).