Diamond Harbor is in which city?

Diamond Harbor, also known as Diamond Harbour, is a port town located in the South 24 Parganas district of West Bengal, India. It is situated on the eastern bank of the Hooghly River, approximately 32 kilometers south of Kolkata. The town is named after the diamond trade that once flourished in the area, although the port's primary function today is more related to the transportation of goods and passengers. The geographical location of Diamond Harbor is significant because it is part of the larger Kolkata metropolitan area. Kolkata, formerly known as Calcutta, is the capital city of West Bengal and one of the major cities in eastern India. It is a major commercial and cultural center, and the presence of Diamond Harbor underscores its importance as a port city. The other options provided in the question are not correct because: - Hyderabad is the capital city of Telangana, located in southern India. - Madurai is a city in the state of Tamil Nadu, in southern India. - Pune is a city in the state of Maharashtra, in western India. These cities are not geographically or historically associated with Diamond Harbor. Therefore, the correct answer is Kolkata, as Diamond Harbor is a part of the Kolkata metropolitan area and is located in the state of West Bengal.