To promote backyard poultry farming, Odisha distributes a specific breed known as:

The correct answer is: a) Vanaraja.

Vanaraja is a breed of chicken that is native to Odisha, India. It is a dual-purpose breed, meaning that it is good for both meat and eggs. Vanaraja chickens are known for their black feathers, red combs, and yellow legs. They are also known for being hardy and disease-resistant.

Odisha government has been distributing Vanaraja chicks to farmers since 2016 in order to promote backyard poultry farming. The government has also been providing training to farmers on how to raise Vanaraja chickens.

The other options are incorrect because:

• Giriraja is a breed of chicken that is native to Andhra Pradesh, India.
• CARI Nirbheek is a breed of chicken that is developed by the Central Avian Research Institute (CARI) in India.
• Kadaknath is a breed of chicken that is native to Madhya Pradesh, India.

I hope this helps! Let me know if you have any other questions.