Here is the syllabus for general aptitude test for GATE 2015. This will be common for all branches and there will be a high competition among all the candidates. So practice as many questions as possible. Follow the syllabus first.
GATE 2015 Syllabus for General Aptitude Test
Common Syllabus for ALL Branch
Verbal Ability: English grammar, sentence completion, verbal analogies, word groups, instructions, critical reasoning and verbal deduction.
Numerical Ability: Numerical computation, numerical estimation, numerical reasoning and data interpretation.
