New Delhi Embassy - Average processing time for 221(g)?

The following is my timeline for 221(g):
12/16/2019- Dropbox appointment for H1 transfer/extension
12/19 - passport returned with white slip to appear for interview
12/30 - given 221(g) blue slip at interview in New Delhi Embassy
1/6/2020- submitted documents(client letter etc) through email

It’s been 30+ days since i submitted the docs. No change in Last Updated Date in CEAC. It still shows 12/30(interview date)

Does anyone have an idea what is the average processing time for 221(g) cases in New Delhi Embassy?