Explanation:

In India, there are various types of municipalities that are responsible for local governance and administration. These municipalities are established based on the size, population, and urban development of the area. The options given in the question are:

a) Nagar Panchayat:
A Nagar Panchayat is a type of municipality that is established for areas that are transitioning from rural to urban areas. It is usually created for areas with a population between 10,000 and 30,000. Nagar Panchayats have elected representatives and are responsible for basic civic functions such as sanitation, street lighting, water supply, etc.

b) Municipal Corporation:
A Municipal Corporation is a type of municipality that is established for larger urban areas. It is usually created for cities with a population of more than 1 lakh. Municipal Corporations have elected representatives and are responsible for providing a wide range of services such as water supply, sewage disposal, public health, education, etc. They have more autonomy and powers compared to other types of municipalities.

c) Gram Panchayat:
Gram Panchayat is a local self-government institution in rural areas. It is the lowest tier of the Panchayati Raj system and is responsible for the administration of a village or a group of villages. Gram Panchayats have elected representatives and are responsible for various development activities at the village level, such as infrastructure development, welfare schemes, etc.

d) Municipal Committee:
A Municipal Committee is a type of municipality that is established for smaller urban areas. It is usually created for towns with a population between 20,000 and 1 lakh. Municipal Committees have elected representatives and are responsible for providing basic civic amenities and services to the residents.

Correct answer:
The correct answer is option 'C' - Gram Panchayat. Gram Panchayat is not a type of municipality in India. It is an institution of local self-government in rural areas, while municipalities are established for urban areas. Gram Panchayats and municipalities have different functions and responsibilities based on the nature of the area they govern.

In summary, while Nagar Panchayat, Municipal Corporation, and Municipal Committee are all types of municipalities in India, Gram Panchayat is not a municipality but a local self-government institution in rural areas.