No, it is not mandatory to give CAT and MAT to take admission in SIBM Pune, it considers SNAP Test scores only. if you have valid SNAP score then you can apply for this institute.

Symbiosis National Aptitude Test (SNAP) is a common written test for the admission to all the Post-Graduate Institutes of Symbiosis International (Deemed) University.

Eligibility:
The applicant should have completed graduation in any discipline from any Statutory University with minimum 50% marks for all the MBA Programmes,

Important dates:
Last Date for Registration Nov 22, 2013
Last Date for Payment Nov 26, 2013
Date of Exam Dec 15, 2013
Announcement of Result Jan 9, 2014

If you want to know more about it then contact to the address given below:

Address
Symbiosis Institute of Business Management
Symbiosis Knowledge Village, Mulshi, Pune, Maharashtra 412115, India ‎
+91 20 3911 6000