Does the male Indian Robin Copsychus fulicatus share incubation duties?

During our frequent visits to the countryside of Solapur city, we observed an unusual behaviour in a pair of Indian Robins Copsychus fulicatus. It was a hot summer day in May 2021 and we noticed the pair collecting nest material such as grassroots, twigs, and hair. The nest was situated on a 1.5 m high mound of soil. To avoid disturbing them, we observed them from a distance of c. 9 m, with the help of a 10x binoculars and 65x camera. The location of the nest was clearly visible—in a westward facing hole, 1.4 m above the groun