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The Mango Research Center in Chapainawabganj is a government facility dedicated to the study and improvement of mango cultivation in Bangladesh.
Run under the Bangladesh Agricultural Research Institute (BARI), this center works on developing new mango varieties, improving farming techniques, and fighting diseases that affect mango trees.
For visitors, it offers a fascinating look into the science behind Bangladesh's most beloved fruit.
The center has a collection of mango trees representing dozens of different varieties from across Bangladesh and beyond.
Walking through the grounds feels like a living encyclopedia of mangoes — you will see trees of Langra, Himsagar, Fazli, Gopalbhog, Ashwina, Amrapali, and many experimental varieties being developed by the scientists.
Each tree is labeled with its variety name, origin, and key characteristics, making it an educational experience.
Chapainawabganj produces more mangoes than any other district in Bangladesh.
The research done at this center directly helps the thousands of mango farmers in the region grow better fruit, protect their orchards from pests and diseases, and increase their income.
The center has developed several improved mango varieties that are now widely planted across the country.
It is a place where tradition meets modern agricultural science.
If you are visiting Chapainawabganj during mango season and have already experienced the Kansat Mango Market, the Research Center adds a different dimension to your mango knowledge.
While the market shows the commercial side, the research center shows the scientific side — how new varieties are created, how orchards are managed, and what the future of mango farming looks like.
Staff members are often happy to show visitors around and explain their work.
Free entry.
No ticket required — just check in at the main office.
Generally open during government office hours: Saturday to Thursday, 9:00 AM to 5:00 PM.
Closed on Fridays and government holidays.
Best to call ahead during off-season months.
1.5 to 3 hours.
A quick walk through the main orchard and nursery takes about 1.5 hours.
If you want to talk to researchers and explore all sections thoroughly, plan for 2.5-3 hours.
March to July is the best time.
March-April for mango blossoms, May-July for the harvest season when you can see and taste ripe mangoes.
The annual mango festival usually happens in June-July.
Avoid the extreme summer heat of April-May if possible — go early morning instead.
Entry is free.
Budget ৳200-400 per person for the day including transport from Chapai Nawabganj town (auto-rickshaw ৳80-120 each way) and snacks.
If buying mango saplings from the nursery, they cost around ৳50-150 each.
During mango season, you can buy fresh mangoes from nearby vendors for ৳50-100 per kg.
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**A Hidden Gem of Sultanate Architecture** Dhania Chalk Mosque is a lesser-known but charming historical mosque tucked away in the rural landscape of Chapainawabganj. Built during the [Bengal Sultanate](https://en.wikipedia.org/wiki/Bengal_Sultanate) period, this small mosque showcases the same brick-and-terracotta building tradition that made the region's Sultanate architecture famous. While it does not have the scale of [Chhoto Sona Masjid](/tourist-places/chhoto-sona-masjid), it has its own quiet beauty and historical importance. **What Makes It Interesting** The mosque features the typical elements of Sultanate-era construction — a rectangular prayer hall with arched doorways, a curved Bengali-style roof (locally called "chala" roof), and decorative terracotta panels on the walls. The "Chalk" in its name may refer to a raised platform or market area (chawk) near the mosque. The terracotta decorations, though weathered over the centuries, still show delicate patterns of flowers and geometric designs. **A Village Mosque with History** Unlike the Gaur ruins which were part of a grand capital city, Dhania Chalk Mosque tells a different story — it shows that fine architecture was not limited to the big cities. Even in smaller villages, the Sultanate rulers and wealthy patrons built mosques with care and artistry. This makes it a valuable example of how Islam and its architectural traditions spread across rural Bengal during the medieval period. **A Peaceful Detour** For visitors who have already seen the Gaur ruins — places like [Darasbari Mosque](/tourist-places/darasbari-mosque) and [Kotwali Darwaza](/tourist-places/kotwali-darwaza) — in Shibganj, Dhania Chalk Mosque offers a pleasant detour into the countryside. The mosque sits in a green, rural setting that feels far removed from the tourist circuit. It is the kind of place where you can sit quietly, enjoy the village atmosphere, and appreciate a piece of history that most tourists never see.
**A Mosque by the Ancient Pond** Khania Dighi Mosque is a Sultanate-era mosque that sits beside a large historic pond (dighi) in the Gaur ruins of Shibganj, Chapainawabganj. The name says it all — "Khania Dighi" refers to the big old pond next to it, and the mosque takes its name from this body of water. Built during the [Bengal Sultanate](https://en.wikipedia.org/wiki/Bengal_Sultanate) period (likely 15th century), this mosque and pond combination shows how medieval builders planned their religious and public spaces together. **The Mosque** The mosque is a brick structure with the typical features of Sultanate-era architecture — arched doorways, thick walls, and traces of terracotta decoration. While not as grand or well-preserved as [Chhoto Sona Masjid](/tourist-places/chhoto-sona-masjid), it still gives a clear picture of what a neighborhood mosque looked like in ancient Gaur. Parts of the walls and arches still stand, and you can see the outline of the prayer hall and mihrab positions. **The Dighi (Pond)** The large pond beside the mosque is an important part of the site. In the Sultanate period, every major mosque had a water tank nearby for ablution (wudu) before prayers. These ponds also served as water sources for the local community. The Khania Dighi is one of several historic ponds in the Gaur area and is still filled with water, adding beauty to the setting. The reflection of the old ruins in the still water makes for a lovely scene. **Part of the Gaur Heritage** Khania Dighi Mosque is part of the cluster of Sultanate-era monuments scattered across the Gaur ruins on the Bangladesh side. It sits within easy reach of [Tahkhana Complex](/tourist-places/tahkhana-complex), [Chhoto Sona Masjid](/tourist-places/chhoto-sona-masjid), and [Darasbari Mosque](/tourist-places/darasbari-mosque). While it is a smaller and simpler monument compared to some of its famous neighbors, it adds to the overall picture of how the ancient city was laid out, with mosques, ponds, and public buildings dotting the landscape.
**A Zamindar's Mansion in Mango Country** Kansat Rajbari is an old zamindar's (landlord's) mansion located in Kansat, one of the most well-known towns in Chapainawabganj. The word "Rajbari" literally means "King's House," and while the owners were not kings, they were powerful local landlords who controlled vast tracts of land during the British colonial period. The mansion stands as a reminder of the [zamindari system](https://en.wikipedia.org/wiki/Zamindari_system) that shaped the social and economic life of rural Bengal for centuries. **What You Will See** The rajbari is a colonial-era building with the typical features of Bengali zamindari architecture — tall columns, arched windows, decorative plasterwork, and spacious courtyards. While parts of the building have deteriorated over the decades, the main structure still gives you a clear idea of how grand it once was. The high ceilings, wide corridors, and ornate facades speak of a time when the zamindar was the most important person in the area. **Kansat — The Mango Capital** What makes visiting Kansat Rajbari special is its location in the heart of Chapainawabganj's mango country. Kansat is home to the [Kansat Mango Market](/tourist-places/kansat-mango-market), the largest mango wholesale market in Bangladesh. If you visit during mango season (May-July), you can combine your rajbari visit with a trip to the bustling mango market — a truly unique experience. The zamindars of Kansat were likely among the first to promote and profit from the region's famous mango orchards. **A Window into Colonial Bengal** The rajbari gives visitors a glimpse into how local administration worked under British rule. The zamindars collected taxes, settled disputes, and served as the link between the colonial government and the common people. Walking through the old rooms and courtyards, you can imagine the busy life that once filled these spaces — from formal meetings to family celebrations. Nearby, [Alpona Village, Tikoil](/tourist-places/alpona-village-tikoil) offers a beautiful contrast — while the rajbari shows the life of the wealthy elite, the village showcases the vibrant folk art traditions of ordinary people.
**A Sultanate-Era Mosque and Madrasa in Ruins** Darasbari Mosque is one of the important historical ruins in the ancient city of [Gaur](https://en.wikipedia.org/wiki/Gaur,_Bangladesh), located in Shibganj Upazila of Chapainawabganj. The name "Darasbari" is believed to come from the word "Dars" meaning "lesson" — pointing to the fact that this mosque was once part of a madrasa (Islamic school). A stone inscription found at the site tells us it was built in 1479 AD during the reign of Sultan Yusuf Shah of the [Bengal Sultanate](https://en.wikipedia.org/wiki/Bengal_Sultanate). **What Remains Today** The mosque is now mostly in ruins, but you can still clearly see the original layout. It was a large rectangular building with multiple arched doorways and several domes. The brick walls still stand to a good height in many places, and you can make out the positions of the mihrabs (prayer niches) on the western wall. Some beautiful terracotta decorations survive on the remaining walls, showing flower and geometric patterns typical of the Sultanate period. **The Madrasa Connection** What makes Darasbari special is its connection to learning. In the Sultanate period, mosques often had madrasas attached to them where students would study religion, law, Arabic, and other subjects. The layout of Darasbari suggests there were rooms and spaces around the main mosque that served as classrooms and living quarters for students and teachers. This gives us a glimpse into the educational life of medieval Bengal. **A Quieter Part of Gaur** Darasbari Mosque sits a bit away from the more visited [Chhoto Sona Masjid](/tourist-places/chhoto-sona-masjid) and [Tahkhana Complex](/tourist-places/tahkhana-complex), which means it gets very few visitors. For those who enjoy exploring ruins without crowds, this is a perfect spot. The partly crumbled walls covered with moss and surrounded by trees create an atmospheric setting that feels like stepping back in time. It is about 1.5 km from Chhoto Sona Masjid and can easily be included in a tour of the Gaur ruins.