Is machiraju surname comes under which caste?

MACHIRAJU Surname exists in many castes like - Aruvela niyogi Brhmin families, Kammas, Rajus, Bhatrajus etc. of Andhras. Andhra surnames are adopted in different ways, some adopted thier origin village as surname, some adopted their profession/ skill as surname, some adopted the benovent king underwhom they were employed.

M R Rao