The Karnaphuli Tunnel, officially named the Bangabandhu Sheikh Mujibur Rahman Tunnel, is the first underwater road tunnel in Bangladesh. Located in Chattogram, it runs beneath the Karnaphuli River and connects the city with its southern areas. This tunnel marks a major step forward in the country’s infrastructure and modern transportation system. It saves travel time, improves trade routes, and reflects the nation’s progress. Writing a Karnaphuli Tunnel paragraph in exams helps students learn about national development, technology, and real-world achievements. It also improves their ability to write clearly about important topics using simple, meaningful words.
Karnaphuli Tunnel Paragraph (100 Words)

The Karnaphuli Tunnel is the first underwater road tunnel in Bangladesh. It was built under the Karnaphuli River in Chattogram. The tunnel is named after Bangabandhu Sheikh Mujibur Rahman. It connects the city with Anwara and makes travel faster. The tunnel was built with help from China and is part of the “One City Two Towns” project. It has improved trade and transport in the area. Many people are proud of this development. The Karnaphuli Tunnel is a great example of progress and modern technology in Bangladesh. It helps save time and supports the country’s economy and future growth.
Karnaphuli Tunnel Paragraph (150 Words)
The Karnaphuli Tunnel is a remarkable achievement in the history of Bangladesh. It is the first underwater tunnel in the country and runs beneath the Karnaphuli River in Chattogram. Officially known as the Bangabandhu Sheikh Mujibur Rahman Tunnel, it connects the port city with the southern area of Anwara. This tunnel is 3.32 kilometers long and was built with the help of China. It is expected to boost trade, improve traffic flow, and connect economic zones on both sides of the river. The tunnel is part of the country’s vision to develop a smart and modern transport system. It reduces travel time and opens up new opportunities for businesses and industries. The project reflects the use of advanced engineering and international cooperation. However, like any large development, it needs to be used properly and maintained well. The Karnaphuli Tunnel is a symbol of national pride and future progress.
Karnaphuli Tunnel Paragraph (200 Words)

The Karnaphuli Tunnel is the first underwater road tunnel in Bangladesh and one of the most advanced infrastructure projects in South Asia. It is located in Chattogram and runs beneath the Karnaphuli River, connecting the city with the Anwara upazila. The tunnel is officially named the Bangabandhu Sheikh Mujibur Rahman Tunnel in honor of the Father of the Nation. The entire tunnel is around 3.32 kilometers long and was constructed with technical and financial help from China under the Belt and Road Initiative (BRI).
This tunnel is designed to ease traffic congestion in Chattogram and improve connectivity between different regions. It is a part of the government’s plan for “One City, Two Towns,” which aims to expand urban development to both sides of the river. The tunnel helps reduce travel time for goods and people, which benefits trade, tourism, and industrial growth.
The project represents modern engineering and is expected to change the future of transportation in Bangladesh. However, to maintain its benefits, it should be managed properly, and people should use it responsibly. The Karnaphuli Tunnel is a symbol of technological progress and national pride, helping Bangladesh move forward in its journey of development.
Karnaphuli Tunnel Paragraph for Class 6–8
The Karnaphuli Tunnel is a new tunnel under the Karnaphuli River in Chattogram. It is the first underwater road tunnel in Bangladesh. The tunnel connects the city with a place called Anwara. It was built with the help of China. The tunnel helps people travel faster from one side to the other. It also helps reduce traffic jams in the city. Many people are happy about this tunnel because it saves time and supports business. This tunnel shows how our country is growing. It is a big step forward for Bangladesh and should be used with care.
Karnaphuli Tunnel Paragraph for Class 9
The Karnaphuli Tunnel is the first underwater tunnel in Bangladesh. It was built under the Karnaphuli River in Chattogram. This tunnel connects the city with the Anwara area. It is named after Bangabandhu Sheikh Mujibur Rahman. The project was completed with the help of China. The tunnel has made travel easier and faster, reducing traffic problems in Chattogram. It also helps in the development of trade and industries in the region. The Karnaphuli Tunnel is a great example of the country’s progress. It shows how modern technology can help build a better future.
Karnaphuli Tunnel Paragraph for Class 10
The Karnaphuli Tunnel is an important infrastructure project in Bangladesh. It is the first underwater road tunnel in the country, located under the Karnaphuli River in Chattogram. The tunnel connects Chattogram city with the southern upazila of Anwara. It is named the Bangabandhu Sheikh Mujibur Rahman Tunnel. Built with the support of China, this tunnel is 3.32 km long and helps reduce traffic and travel time. It is expected to support trade, business, and tourism in the area. The tunnel is a major step in the modernization of Bangladesh’s road network. It represents national progress and smart planning.
Karnaphuli Tunnel Paragraph for HSC
The Karnaphuli Tunnel, officially known as the Bangabandhu Sheikh Mujibur Rahman Tunnel, is a major development in Bangladesh’s transport sector. It is the country’s first underwater road tunnel, located beneath the Karnaphuli River in Chattogram. Built with assistance from China, the 3.32-km tunnel connects the city with Anwara and other southern regions. It is part of the “One City Two Towns” plan that aims to expand Chattogram into a modern, two-sided urban center.
This tunnel reduces travel time, boosts connectivity, and enhances trade and business opportunities in the region. It also supports industrial growth and improves the movement of goods and services. While it marks a significant step in the country’s progress, proper maintenance and responsible usage are important for long-term success. For HSC-level students, understanding such national projects helps build awareness of development and infrastructure. The Karnaphuli Tunnel stands as a symbol of vision, technology, and future promise.
Wrapping Up
The Karnaphuli Tunnel is a proud achievement for Bangladesh. It connects regions, saves time, and shows the country’s progress in using modern technology. From students to professionals, everyone can benefit from understanding such projects.
Writing a Karnaphuli Tunnel paragraph helps students improve their knowledge, writing skills, and awareness of national development. It also teaches them how to present big topics in simple words. However, like any progress, it should be appreciated, used wisely, and maintained well. This tunnel is not just a road under a river—it is a path to the future of Bangladesh.
Frequently Asked Questions (FAQs)
Q1: What is the Karnaphuli Tunnel?
It is the first underwater road tunnel in Bangladesh, located in Chattogram.
Q2: When was the Karnaphuli Tunnel built?
Construction began in 2017 and was completed in 2023.
Q3: Why is the Karnaphuli Tunnel important?
It improves transport, trade, and connectivity between different parts of Chattogram.
Q4: Who helped Bangladesh build the Karnaphuli Tunnel?
The tunnel was built with help from China under the Belt and Road Initiative.
Q5: How long is the Karnaphuli Tunnel?
The tunnel is 3.32 kilometers long.
