My Tancet mark is 32.667 belonging to BC. Is PSGTECHNOLOGY and PSGMANAGEMENT different colleges? If so can I get seat for my mark in any one?And is it good to do it in that college.?

With the score you're mentioning you have good chances of getting PSG Institute of Management, Coimbatore as their cutoff for TANCET MBA is somewhere near 30 for BC category students. 

Apart from that you can also check out these colleges for MBA 

• Sona School of Management 
• Galaxy Institute of Management 
• Vel Tech High Tech Dr Rangarajan Dr. Sakunthala Engineering college 
• RMK Engineering college 
• Measi Institute of Management and other colleges 

Good luck