Trending @HCL; Group manager , senior technical manager and senior group manager has band more than 3.2 but what is difference among three of these bands

In HCL

E1 Band - 1.1/1.2 Analyst/Senior Analyst E2 Band - 2.1/2.2/2.3 - Specialist/Senior Specialist/Technical Specialist E3 Band - 3.1/3.2 Associate Consultant/Consultant E4 Band 4.1/4.2 Senior Consultant/AGM

These are the bands in HCL, let me know what are you looking for