Sankissa, earlier known Sankasia, Sankassa and Sankasya, is an ancient city. It came into prominence at the time of Gautama Buddha. According to a Buddhist source, it was 30 leagues from Savatthi.

Mentioning that Sankissa village of Farrukhabad had one of the most ancient Buddhist links of the world, Chief Minister Yogi Adityanath announced the place to be developed as a Buddhist pilgrimage.