i m now in b.tech 4th year electrical branch,plz tell me about the best prep book for psu,i have galgotia question bank ,is this sufficient?

galgotia is excellent...no need of ne separate book

Hi Naman, If you are talking about PSC then in that case Galgotia can be one good option but I would suggest that as Civil Service Examination is a tough nut to crack you should opt for coaching rather than self study. If you are planning to do self study I would suggest you to consult NCERT books