What is best study material for the preparation of Haryana Civil Services Exam?

The selection for the Haryana Civil services involves 3 steps

i) Prelims – 2 paper (General Studies and Aptitude Test of 100 marks each),
ii) Mains – 5 papers (English, Hindi, General Studies, Subject 1 and Subject 2)
iii) Personality Test

The State PCS differs from the CSE is its increased focus on the state. Thus the best strategy for the preparation of General Studies is to buy any Haryana GK book online. Some of the famous General Knowledge books for Haryana Civil Services examination are General Knowledge Haryana (Team Arsu), Haryana General Knowledge by C.L Khanna, and Haryana Current Affairs Year 2019 with practice MCQ by Rajendra Prasad.For all other subjects, the candidate can follow just the common books for UPSC. The names of some of these books are mentioned in the succeeding paragraph.The 2 subjects of mains are to be selected from the list of 23 subjects and you need to select any 2 subjects of your choice, provided some subjects are very similar and those combinations are not allowed like Political Science and Public Administration.

There are so many resources available that can assist the student in the HCS Exam preparation. These books are often referred by most of the successful candidates in the civil services examination.
Arguably the most sought after reference book by Civil Services Aspirants is Indian Polity by M.Laxmikant, A brief history of Modern India by Rajiv Ahir is a comprehensive view of India’s modern History, For Geography the two highly recommended books are Certificate Physical and Human Geography by GC Leong and India and World Geography, India Map Entries in Geography for Haryana Civil Services Main Examination 2019 by Majid Hussain. The books are ideal considering the simple language and precise language which makes it an ideal choice for each aspirant. Indian Economy by Ramesh Singh and another one authored by Sanjiv Verma are the most recommended books for the Civil Services aspirants
For Economics, I would like to recommend Indian Economy by Ramesh Singh. There are two ideal books in the market for UPSC, first is written by Ramesh Singh and the other one by Sanjiv Verma. Some of the other books worth referring to are Higher Judicial Service Examination by Narender Kumar, The Ultimate Guide To The Judicial Services Examinations by MA Rashid, Class Notebook Of Geography published by JPD,Guide to Judicial Service Examination published by Universal Law Pub, Delhi Judicial Service by Sailender Malik,Eminent Modern Indian Political Thinkers by K. Gopal,Expected Questions On Political Science Book by Sanjay Kumar,Climatology (General & Applied) by Tahir Hussain & Mary Tahir,Handbook Of Public Administration by Vikram Singh