The correct answer is: a) Pipili.
Chandua is a traditional applique work associated with the town of Pipili in Odisha. It is a form of embroidery that uses pieces of cloth to create intricate designs on a fabric base. The designs are often geometric or floral, and they can be very colorful. Chandua is a very popular form of embroidery in Odisha, and it is often used to decorate clothing, home furnishings, and religious objects.
The other options are incorrect because they are not associated with Chandua. Sambalpur is a city in Odisha that is known for its woodcarving. Raghurajpur is a village in Odisha that is known for its Pattachitra painting. Bargarh is a district in Odisha that is known for its handloom weaving.