India adopted metric system of units in

Options

A. 1947
B. 1950
C. 1956
D. 2000

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks when India adopted the metric system of units. The options provided are 1947, 1950, 1956, and 2000.

2. **Analyzing the Options**: We need to evaluate each year to determine which one is correct.
- 1947: This is the year India gained independence, but it is not known for adopting the metric system.
- 1950: This year marks the adoption of the Constitution of India.
- 1956: This is a significant year in terms of the metric system.
- 2000: This year is too recent for the adoption of the metric system.

3. **Identifying the Correct Year**: Among the options, 1956 stands out as the year when India officially adopted the metric system of units.

4. **Conclusion**: Therefore, the correct answer is 1956.

5. **Final Answer**: The metric system of units was adopted in India in December 1956, which corresponds to option 3.