Naresh koppu, faculty in history. working in Shyam institute Kakinada, Hareesh best academy Hanumakonda, Ramaiah coaching center, Hyderabad. Golconda institute of police, Edu brics Civils services Hyderabad, 5 mantra career point, Telangana B.C, S.C, S.T and minority study circles of hyderabad, Harshit institute Vijayawada.