Will you please provide me the duration of ICWA course after completing B.Com?

ICWA - Institute of Cost and Works Accountants of India (ICWAI) course is divided into three stages.
Foundation course
Intermediate course
Final course

Minimum Duration:
Foundation Program- 6 months
Intermediate Program- 12 months
Practical Training- 36 months
Final Course- 12 months

Being a graduate, you are eligible to skip the foundation course of ICWAI. You can directly get admission in Intermediate course.

Durations of ICWA course after completing B.Com --
Intermediate Program- 12 months
Practical Training- 36 months
Final Course- 12 months

After successful completing ICWAI Course one can be employed as:

Chief Accountant
Marketing Manager
Teacher
Cost Accountant
Cost Consultant
Cost Controller
Chief Internal Auditor
Finance Director
Financial Consultant
Financial Controller
Managing Director