What books should I follow for clearing IAS prelims? Should I go for coaching or will self study work?

books to go for ias pre exam

I am a graduate from allahabad university.After my graduation, i opted CHARTERED ACCOUNTANT as my career. i have cleared my IPCC EXAM in one go.But now i am taking a break from it and want to pepre for IAS EXAMS. i am very much confused that what BOOKS should i go for and from when and where to start my preparation. I am not in touch with any one of this field and i have least knowledge about the study plan and STUDY MATERIAL i should go for.CAN U PLEASE SUGGEST ME WITH THE BOOKS I SHOULD PURCHASE AND WHETHER I SHOULD GO FOR COACHING OR SELF STUDY. THANK YOU.

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