Hi
For applying to the CAT, a candidate must hold a Bachelor's Degree, with at least 50% marks or equivalent CGPA [45% in case of candidates belonging to SC/ ST or Persons with Disability], of any of the Universities or Institutes recognized by the UGC or the Ministry of HRD, Government of India. The Bachelor's Degree or equivalent qualification obtained by the candidate must be of minimum three years duration after completing Higher Secondary schooling (10+2) or equivalent. Candidates in their final year of graduation/ equivalent qualification and those who have completed the exams and are awaiting results are also eligible for the CAT 2009. They must produce a certificate from the Principal / Head of the Department/ Registrar/ Director of the University / Institution certifying that he / she is currently in the final year awaiting final results.


The CAT question paper has four different segments, namely, Verbal Ability, Reading Comprehension, Problem Solving and Data Interpretation.
There is as such no limit for age or no. of attempts. It is essential for the students to prepare at least 10,000 vocabularies to be on the safe side. Students are always advised to read at least two papers and editorials on a daily basis to improve their standard of English. One should be strong at calculations and practice shortcuts for mathematics on a daily basis. 


U can start the CAT preparation from the penultimate year of ur graduation.
						

							
Hi Satya
 
First of all their is no age limit for Cat, the candidate from any age bar can apply for the entrance examination. 
 

Educational Qualification
 
A candidate must:
 

Hold a Bachelor’s Degree from any University or educational institution as incorporated by an Act of the Parliament or State legislature in India or declared to be deemed as a University under Section 3 of the UGC Act, 1956, or possess an equivalent qualification recognized by the Ministry of HRD, Government of India.
Possess an equivalent qualification recognized by the Ministry of HRD, Government of India (including the Associate Membership Examination (AMICE) of the Institution of Civil Engineers (India) as an equivalent qualification).

 
Marks/CGPA In Degree Examination
 
The candidates should have obtained at least 50% marks or equivalent CGPA in their degree examination.
However, the candidates belonging to Scheduled Caste(SC), Scheduled Tribe (ST) and Person With Disability (PWD) categories need to secure at least 45%.