Some of the Good institutes in MAT are Amity Noida, Christ Bangalore, Alliance Bangalore, Apeejay institute of management & Asia pacific Delhi.
For Alliance you need above 90 percentile and 60% in 10, 10+2 and Graduation.
For Christ, Candidates with a composite score of 600 and above in the December 2008 / February 2009 MAT or have 75 percentile and above in the CAT 2008 and aggregate percentage of 50% and above in their Undergraduate program are eligible to apply.
For Amity, you need 600+ composite score and Graduation (min 50%) & 10+2 (min 60%)
@ Prashant : - U can apply to Amity and Christ