As many of you aware that case number can be deciphered the following way
XXX2020770040
XXX - Embassy code
2020 - year in which case was created
770 - number of case created in this category
040 - unique case number at embassy
I checked for Mumbai and noticed case category from 770 - 779 and each category has case numbers between 50 and 75 cases. My case category fall in this range. I'm not sure how many other case categories are there. Roughly ~700 (10 X 70) cases in this category for 2020.
Does any one aware of any other categories?