Explanation:

- Option 1: Haryana

- Haryana is known for wheat and rice production rather than pulses.

- Not a top contender for being the largest pulse producer.

- Option 2: Bihar

- Bihar grows pulses but is more famous for its production of litchi and maize.

- It doesn’t lead in pulse production at the national level.

- Option 3: Madhya Pradesh

- Madhya Pradesh is the largest producer of pulses in India.

- The state has extensive areas devoted to various pulses such as chickpeas and lentils.

- Option 4: Uttarakhand

- Uttarakhand has a varied climate suitable for different crops.

- It is not a significant producer of pulses.

Correct Answer: Option 3- Madhya Pradesh.