how long is yellow slip 221g for visitor visa taking in delhi

[respondrm]

my father got one in early march and till not status shows pending

anyone has idea how long 221g with yellow handout in delhi consulate is taking for visitor visa B2 renewal.

Also does Delhi update its case status regularly?

Anyone from Chennai/Hyderabad/mumbai -whats yr experience? Anyplace i can track this?

[respondrm]

got visa

interview in delhi - b2 renewal 5th march
221g yellow form . officer said it will take 2-3 weeks
got passport with visa stamped on 1st april.

4 weeks in all