The cutoff marks for the TANCET for MBA course were 30.200 for the MBC category candidate in RMK engineering college, Gummidipoondi, Thiruvallur for the previous year. Now based on your marks you have the following institiutes for the MBA course.

• University of Madras, Chepauk with the marks 47
  
• Sri Sivasubramaniya Nadar  College of engineering, Kancheepuram with 43.667
  
• Thiagarjar School of Management, Madurai with marks 40.333
  
• Kumaraguru college of technology, chinnavedampatti post, coimbatore with 39.667
  
• St. Joseph's college of engineering, OMR, Chennai with marks 35.333
  

Also refer the link for the more information about the MBA institutes and the cutoff marks for the previous year.

https://collegedunia.com/exams/tancet/cutoff