The traditional cuisine of Seppa, influenced by the Nyishi tribe and other indigenous communities, is characterized by simple and organic ingredients sourced from the surrounding environment. Bamboo shoots play a significant role, often cooked with pork or fish, and are also used in the fermented pickle known as Pika Pila, which is a common side dish. Boiled or smoked meats, especially pork and fish, are staples, typically served with boiled vegetables and rice.
The local music and dance of Seppa are integral to the cultural identity of the Nyishi tribe, often showcased during festivals, rituals, and community gatherings. Traditional music features instruments like the dabak, a bamboo flute, and dhol, a drum, which provide rhythmic and melodic accompaniment. Nyishi songs typically revolve around themes of nature, daily life, and folklore, serving both as entertainment and storytelling. Dance forms are vibrant and expressive, characterized by colorful attire and lively movements.