Hello, 

There are many private universities which acn offer you B. Tech course in 5.9 cgpa. Some of thise universities are listed below :

• Sri sai ram engineering college, Chennai 
• Thiagarajar engineering college, Madurai
• Easwari engineering college, Chennai
• Rajalakshmi engineering college, Chennai 
• Saveetha school of engineering, Chennai 
• St joseph's college of engineering, Chennai
• Anand institute of higher technology, Chennai 
• Velammal engineering college, Chennai and many more...... .. 

I hope this would help you  For further queries please feel free to write me down in the comment box.