Introduction:
The recently granted Geographical Indication (GI) tag, "Matti banana," belongs to the state of Tamil Nadu.

Explanation:
Geographical Indication (GI) is a tag given to products that originate from a specific geographical location and possess qualities or a reputation that are primarily due to that location. It helps protect the uniqueness and reputation of traditional products and promotes their market value.

Identification of the State:
The question asks for the state to which "Matti banana" belongs. To answer this, we need to understand the term "Matti banana" and its geographical origin.

Matti Banana:
"Matti banana" is a term used to refer to a particular variety of banana that is grown in a specific region. Unfortunately, there is limited information available about "Matti banana" specifically. However, considering the context of the question and the options provided, we can make an educated guess based on the known banana cultivation areas in India.

Known Banana Cultivation Areas in India:
Bananas are widely grown across India. However, some states are known for their significant banana cultivation. These include Maharashtra, Bihar, Karnataka, and Tamil Nadu.

Elimination of Options:
To determine the correct state, we can eliminate the options one by one based on the available information:

a) Maharashtra: Maharashtra is known for its banana cultivation. However, there is no specific mention or evidence of "Matti banana" being grown in Maharashtra.

b) Bihar: Bihar is also known for banana cultivation, but there is no specific mention or evidence of "Matti banana" being grown in Bihar.

c) Karnataka: Karnataka is another state with a significant banana cultivation. However, there is no specific mention or evidence of "Matti banana" being grown in Karnataka.

d) Tamil Nadu: Tamil Nadu is known for its diverse banana varieties, and there is a likelihood that "Matti banana" is grown in this state. Moreover, the correct answer is mentioned as option 'D.'

Conclusion:
Based on the available information and the process of elimination, we can conclude that "Matti banana," which was recently granted the GI tag, belongs to the state of Tamil Nadu. However, further research and specific information about "Matti banana" would be required for a definitive answer.