Dear Aspirant,

The information provided by you is insufficient ,

So please provide more information on that basis we may guide you ,

I am not getting those exams are for army services or forestry services ,

So please give some details about the topic through which we can explain you exactly ,

These are the books you may refer

Objective Food Science by SK Sharma

General Knowledge by Dr. Binay Karna

APPSC General Studies and Mental Ability by Vijetha Competitions

AP SCERT Text Books

Modern India by Bipin Chandra by Bipin Chandra

NCERT Text Books

Indian Constitution and Political System by Ajay Patel

Objective Food Science and Safety standards by Prabodh Halde and Sanjeev Sharma

Quantitative Aptitude for Competitive Examinations by RS Aggrawal

A Competition Book For Food Safety Officer Paperback by Mrs. Durvesh Kumari and Dr. S.K. Goyal Er. Suresh Chandra

Newspapers and Current affair magazines

Indian Polity by M. Laxmikanth

AP bifurcation problems by Kodali Bhavani Sankar

General Knowledge Capsule 2019 with Current Affairs by Disha Experts

Shorts Notes on Food Safety Officer Examination by Chandra S

Hope this information helps you ,

Feel free to ask,

Thank you .