sir it depends on what you want to pursue in future,as there are different best institutes for different streams,

like for engineering all know about iit's,nit's

and for medical stream

• All India Institute of Medical Sciences (AIIMS), Delhi.
• Christian Medical College (CMC), Vellore.
• Armed Forces Medical College (AFMC), Pune.
• JIPMER College, Puducherry.
• Maulana Azad Medical College (MAMC), Delhi.
• Lady Hardinge Medical College (LHMC), Delhi.
• Madras Medical College, Chennai.
• Grant Medical College, Mumbai.

--- for commerce

srcc,

lady shri ram college,

du,

hansraj university,

christ university,

hindu college,

nmims,

---for law stream

all nlu's , colleges in du and others..

----for hotel management

• Institute of Hotel Management, Catering & Nutrition (IHM), Pusa, New Delhi.
• Institute of Hotel Management, Catering Technology and Applied Nutrition, Mumbai.
• Welcomgroup Graduate School of Hotel Administration, Manipal.
• Institute of Hotel Management Catering Technology and Applied Nutrition, Chennai.

• Aftern 12th you have options like IIT NIT institute for pursuing your UG degree
• After UG you have options to do your PG degree from IIT via GATE examination.
• If you want to go in foreign universities after your UG degree then you have option like GRE TOEFL  etc.