Garh Basai is a village in Thanagazi tehsil in district of Alwar, Rajasthan, India. As per the data provided by Census of India in 2011, total population of Garh Basai was 2,939 which includes 1,514 males and 1,425 females. Garh Basai covers 962 ha area. Pincode of Garh Basai is 301022.