Today, I was looking at the IRCTC stock. Here is what I observed.

28-10-2021 - Closing Price: 913.50

**29-10-2021:**

Open at 822.15 (i.e., 10% fall - 913.5 * 0.9)

Lower circuit is 822.15 and upper circuit is 1004.85

**After 10-15 minutes,**

Trading at 776.5 ( i.e., 15% fall - 913.5*0.85)

Lower circuit modified as 776.5 and upper circuit is 1004.85.

**After 10-15 minutes,**

Trading at 730.8 ( i.e., 20% fall - 913.5*0.8)

Lower circuit modified as 730.8 and upper circuit is 1004.85.

**After 10-15 minutes,**

Trading at 685.125 (i.e., 25% fall - 913.5*0.75)

Lower circuit modified as 685.125 and upper circuit is 1004.85.

and then it started picking up the price.

Observation is that the lower circuit gets reduced to 5% after sometime (when stock hits its lower circuit).

My question here is:

How long can the lower circuit be reduced. Can it go until the stock price becomes 0 (theoretically)?

Or Is there any limit that says the price can’t go more than 25% or 30% or something like that?