Tilanthi is a village in Simri Bakhtiarpur tehsil in district of Saharsa, Bihar, India. As per the data provided by Census of India in 2011, total population of Tilanthi was 3,045 which includes 1,620 males and 1,425 females. Tilanthi covers 318.4 ha area. Pincode of Tilanthi is 852106.