Hey buddy generally a conventional MBA degree has 2 years duration but it also depends on which program you choose, I am giving you the details for the MBA programs with their duration you can have a look

Full-time MBA 2 years

Accelerated MBA 12 – 18 months

Part-time MBA Usually 3 years

4+1 MBA 5 years

Evening/Weekend MBA 2 years or more

Executive MBA 1-to-2 years

Online MBA 1-to-2 years

Specialty Master's 2 years

Joint Degree 3-to-4 years

DBA 3-to-6 years

PhD 4-to-5 years

Executive Education Several days to several months

Best MBA colleges in India

Faculty of Management Studies (FMS), University of Delhi, Delhi
Indian Institute of Management Ahmedabad (IIMA)
Indian Institute of Management Bangalore (IIMB)
Indian Institute of Management Calcutta (IIMC)
Indian Institute of Management Kozhikode (IIMK)
Indian Institute of Management Lucknow (IIML)
Jamnalal Bajaj Institute of Management Studies (JBIMS), Mumbai
S. P. Jain Institute of Management & Research (SPJIMR), Mumbai
Shailesh J. Mehta School of Management (SJMSOM), Indian Institute of Technology Bombay (IITB)
XLRI Xavier Institute of Management, Jamshedpur

Department of Management Studies (DMS), Indian Institute of Technology Delhi (IITD)
Indian Institute of Foreign Trade (IIFT), Kolkata
Indian Institute of Foreign Trade (IIFT), New Delhi
Indian Institute of Management Indore (IIMI), Indore
Indian Institute of Management Indore (IIMI), Mumbai campus
Indian Institute of Management Raipur (IIMR), Raipur
Indian Institute of Management Ranchi (IIM-Ra), Ranchi
Indian Institute of Management Rohtak (IIM-Ro), Rohtak