JNTUA B.tech 3-1 Sem Notes & Materials JNTUA B.tech 3-1 Sem Civil Branch Notes & Materials JNTUA B.tech 3-1 Sem ECE Branch Notes & Materials JNTUA B.tech 3-1 Sem Mech Branch Notes & Materials JNTUA B.tech 3-1 Sem EEE Branch Notes & Materials JNTUA B.tech 3-1 Sem CSE Branch Notes & Materials