The historic old fish market in Nitpur, located near the border in Naogaon's Porsha upazila, has become vibrant with a heavy supply of fresh and delicious fish from the traditional Punarbhaba River. Early every morning, local fishermen bring chemical-free and ice-free fresh catches straight from the river, creating a festive atmosphere filled with the calls of buyers and sellers. Popular native varieties including Boal, Ayar, Baim, Pabda, Tengra, Patashi, Baus, Gochi, and various small indigenous fish are drawing food lovers and general buyers from all over the upazila at break of dawn.

According to local buyers, the high demand for these chemical-free river fish persists despite somewhat steep prices due to their unmatched taste. Currently, around five major wholesale commission shops in the market handle transactions worth hundreds of thousands of taka daily. Market prices range from Tk 400 to 500 per kg for Boal, Tk 500 to 600 for Pabda, Tk 700 to 800 for Ayar, Tk 400 to 500 for Tengra, Tk 500 to 600 for Patashi, Tk 250 to 300 for Baus, Tk 100 to 200 for Puti, Tk 400 to 500 for Gochi, Tk 700 to 800 for Baim, and Tk 1,000 to 1,200 for prawns.