hi,

see ICWAI course has many types and different duration available.

ICWA Foundation course, Min.  8 months duration.

ICWA Intermediate course  Min. 10 month duration.

ICWA Final course: Min. 18 months duration.

some top institute provide this course is,

The Institute of Cost Accountants of India (ICAI), Bangalore

Narsee Monjee College of Commerce and Economics, Mumbai

Bharathy Educational Centre, Namakkal

GC Rao Academy, Bangalore

Knowledge Academy of Research and Education (KARE), Palarivattom