As per me Indian Institute of Management, Ahmedabad (IIM) does not offered one year MBA , it offered one year Post-Graduate Programme in Management for Executives (PGPX) that is one of the finest one-year, full-time, residential programmes in the world.

Eligibility
Bachelor Degree or equivalent
Valid GMAT score (GMAT scores are valid for five years from the test date to the application deadline date of the round in the candidate is applying. The earliest acceptable GMAT test date for the two rounds are: Round 1- 11 September 2011 and Round 2 -14 November 2011)
Age of 27 years as on March 31 st, 2017

Key dates

Event
Round 1
Application Fee INR 3500
Application Deadline September 12, 2016
GMAT Validity Dates GMAT scores are valid for five years from the test date to the application deadline date of the round in the candidate is applying. The earliest acceptable GMAT test date for the two rounds are
September 11, 2011
Shortlisting for Interviews October 10, 2016
Interviews November 2016
Result Announcement End of November, 2016
Acceptance Deadline Mid December, 2016
Programme Dates April 13, 2017 to March 15, 2018 (Convocation: Last Saturday of March 2018)
Round 2
INR 5000
November 15, 2016
November 14, 2011
December 12, 2016
January 2017
End of January, 2017
Mid February, 2017

For more info contact here :
One Year Post-Graduate Programme in Management for Executives
Indian Institute of Management Ahmedabad,
New Campus, IMDC Block,
Vastrapur, Ahmedabad – 380015, India
Tel: +91-79-6632 4450
Time to phone Monday to Friday: 9:15 am to 12:45 pm and 2:00 pm to 5:30 pm only.
(As per Indian Standard Time GMT + 5:30)
Fax: +91-79-6632 4447
Email: pgpxquery@iima.ac.in