New Pattern from 2012 and Prelims Syllabus as given in Gazette of Karnataka:
I have Copy pasted from the PDF you can check it at:
The Preliminary Examination shall consist of two papers of objective type
(i) each paper carrying 100 questions with each question carrying two marks; and
(ii) each paper shall be of a maximum of 200 marks and of a duration of two hours (Total for two papers400 marks) in the following description, namely:-
PAPER - I
General studies related to National and International importance 40 80
Humanities 60 120
PAPER - II
General studies related to State importance 40 80
General Science & Technology Environment & Ecology 30 60
General Mental Ability 30 60
1. The question paper shall be set both in Kannada and English.
2. The standard of General Mental Ability questions of preliminary examination (aptitude test) shall be that of
X/SSLC level and the remaining papers are of Degree Level.
3. The number of candidates to be admitted to the main examination shall be 20 times the vacancies notified
for recruitment in the order of merit on the basis of the performance in the preliminary examination subject
to accommodating the same ratio in adequate number of candidates belonging to the categories of
Scheduled Caste, Scheduled Tribe, each of the other Backward Classes and others.
(ii) under the heading “Section II”, “Syllabi for the Examination” for Part-A and entries relating thereto,
the following shall be substituted, namely:-
“PART - A
SYLLABI FOR THE EXAMINATION
1. PRELIMINARY EXAMINATION (objective type):
PAPER - I
(i) Current events of National and International importance.
(ii) Humanities – History of India – Emphasis shall be on broad general understanding of the subject
in its social, economic, cultural and political aspects with a focus on Indian national movement
with special emphasis on Karnataka.
(iii) World Geography and Geography of India with a focus on Karnataka.
(iv) Indian polity and economy, including the country’s political system, rural development, planning
and economic reforms in India-sustainable development, poverty alleviation, demographics, social
sector initiatives etc.,
PAPER - II
(i) Current events of State importance and important State Government programmes.
(ii) General Science & Technology, Environment & Ecology-contemporary developments in science and
technology and their implications including matters of everyday observations and experience, as
may be expected of a well-educated person who has not made a special study of any scientific
discipline general issues on Health, environmental ecology, biodiversity and climate change that do
not require subject specialization.
(iii) General Mental Ability,- Comprehension, Logical reasoning and Analytical ability, Decision making,
problem solving, Basic innumeracy (numbers and their relations, order of magnitude etc.,) anddata interpretation (charts, graphs, tables, data sufficiency etc., (class X/SSLC level).”
So Take a Deep Breath ... Only so much to Study :)