Paschimsai is a village in Potashpur II tehsil in district of Purba Medinipur, West Bengal, India. As per the data provided by Census of India in 2011, total population of Paschimsai was 1,018 which includes 523 males and 495 females. Paschimsai covers 211.93 ha area. Pincode of Paschimsai is 721440.