Hello Shinit ,

The colleges that offer Btech with honours in Mumbai are:

• Amity University 
• Rustomjee academy of honours 

Other than mumbai you can go in Dehradun or different state as they have good college offering Btech with Honours as in Mumbai there are very less colleges offering this Degree

Here I am some names of good colleges offering this degree 

•  LPU, Phagwara,  Jalandhar 
•  BML Munjal University, Gurgaon 
•  LNMIIT, Jaipur 
•  GU, Noida
• GEHU Dehradun
• ITM Gwalior
• JLU
• Quantum University Uttrakhand

Hope you will land up in good college and can ask for more clarification