Gajnai is a village in Sohagpur tehsil in district of Hoshangabad, Madhya Pradesh, India. As per the data provided by Census of India in 2011, total population of Gajnai was 445 which includes 240 males and 205 females. Gajnai covers 368.668 ha area. Pincode of Gajnai is N/A.