To what extent price of a share can increase or decrease in a day and during a settlement?

Standard upward and downward price limits over the previous days market price applicable for each market day:
Previous days per share market price Limits
Upto Tk. 200 20% but not exceeding Tk. 35
Tk. 200 to Tk. 500 17.5% but not exceeding Tk. 75
Tk. 501 to Tk. 1000 15% but not exceeding Tk. 125
Tk. 1001 to Tk. 2000 12.5% but not exceeding Tk. 200
Tk. 2001 to Tk. 5000 10% but not exceeding Tk. 375
Tk. 5001 and above 7.5% but not exceeding Tk. 600