Difference between SDE IC3 and IC4 levels in Agoda (India)

Currently ongoing process with Agoda India for software engineering background. Having 8 YOE. HR telling me that I'm falling in the range for IC3 level (6+ yoe) and IC4 is meant for 10 YOE. However with my background and experience I am expecting at least a lead software engineer role. Not able to understand if IC3 is suitable for ME. Also unclear what role name is associated with IC3 and IC4, what's the difference? I've already spent close to 4 years as a Senior SDE.