Pakistani authorities Sunday freed 50 Indian prisoners from a jail in Karachi and they will be handed over to Indian authorities at the Wagah border on Monday, an aid group said.

The freed prisoners boarded vehicles for Lahore, the capital of Punjab province, from where they will proceed to the border for their handover, the Ansar Burney International Trust said.

The aid group said in a statement that it will pay all the expenses to send them to India.

India freed 43 Pakistani civilian prisoners and fishermen on Saturday.

Pakistan and India free each other's fishermen and those civilian prisoners who complete jail terms, following an understanding reached in 2006.