Explanation:
ATMs or Automated Teller Machines are electronic machines that allow customers to perform banking transactions without visiting the bank branch. There are different types of ATMs based on their ownership, operations, and functionalities. Let's discuss each of the statements given in the question.

1. White Label ATMs are owned and operated by the bank:
This statement is incorrect. White Label ATMs are owned and operated by non-banking entities, who have been authorized by the Reserve Bank of India (RBI) to set up and run these ATMs. These entities are usually private companies or third-party service providers who enter into a partnership with banks to provide ATM services to their customers. The banks usually provide the cash and the technology infrastructure, while the white label ATM operators manage the operations and maintenance of the ATMs. The branding on these ATMs is usually neutral or generic, without any bank-specific logos or names.

2. Green Label ATMs are used for agricultural transactions:
This statement is incorrect. There is no such category of ATMs called Green Label ATMs. However, the RBI has issued guidelines for banks to set up ATMs in rural areas to promote financial inclusion and serve the underserved sections of the population. These ATMs are known as Rural ATMs or Gramin ATMs, and they are usually located in remote areas, villages, or small towns. They are equipped with features such as vernacular language support, biometric authentication, and low-cost operations to cater to the needs of the rural population.

3. Brown Label ATMs are owned and operated by a non-banking entity:
This statement is correct. Brown Label ATMs are owned and operated by non-banking entities, who enter into a partnership with banks to provide ATM services to their customers. These entities are usually companies that specialize in providing ATM-related services, such as cash management, maintenance, and repair. The banks usually provide the branding, connectivity, and cash for these ATMs, while the brown label ATM operators manage the operations and maintenance of the ATMs. The branding on these ATMs usually displays the bank's name and logo, but the ownership and operations are handled by the non-banking entity.

Therefore, the correct answer is option 'B' - 2 only.

Explanation:

White Label ATMs:
- White Label ATMs are owned and operated by non-banking entities authorized by the Reserve Bank of India (RBI) to set up ATMs in India.
- These ATMs are not owned or operated by any bank, hence the name "White Label."
- They are allowed to provide banking services to customers of any bank.

Green Label ATMs:
- Green Label ATMs are not specifically designated for agricultural transactions.
- The color "green" is not associated with any specific type of ATM in the Indian banking system.
- Green Label ATMs do not have a standard definition or purpose in the context of ATMs in India.

Brown Label ATMs:
- Brown Label ATMs are owned and operated by non-banking entities, similar to White Label ATMs.
- The key difference is that in the case of Brown Label ATMs, the cash management and maintenance services are outsourced to a sponsor bank.
- These ATMs are part of a collaboration between the non-banking entity and the sponsor bank.
Therefore, the correct statement among the given options is:
- 2 only as Green Label ATMs do not have a specific purpose related to agricultural transactions.