Chaumukha Kalan is a village in Guthani tehsil in district of Siwan, Bihar, India. As per the data provided by Census of India in 2011, total population of Chaumukha Kalan was 157 which includes 84 males and 73 females. Chaumukha Kalan covers 51 ha area. Pincode of Chaumukha Kalan is N/A.