HOW SHOULD ONE PREPARE FOR ANY GOVT. EXAMINATION RELATED TO GENERAL STUDIES AND APTITUDE?

Well for aptitude test best thing to prepare is Maths of std 7,8,9, & 10th.. if that is strong then maths is easily cleared.

Also for if your preparing for GRE or GMAT exams no need to prepare separately for other aptitude tests coz all the topics are covered in GRE & GMAT which is use ful for even interview and also for aptitude test of freshers for corporate jobs..