Stock and marketable securities how to be valued

Where an instrument is chargeable with ad valorem duty in respect of any stock or of any marketable or other security, such duty shall be calculated on the value of such stock or security according to the average price or the value thereof on the day of date of the instrument. (as defined by Section 2 (d) not being a transfer charged or exempted under No. 54) Where the amount or value of the consideration for such conveyance as set forth therein does not exceed Rs. 50: One rupee Twenty five naye paise. Where it exceeds Rs. 50 but does not exceed Rs. 100: Two rupees fifty naye paise. Where it exceeds Rs. 100 but does not exceed Rs. 200: Five rupees. Where it exceeds Rs. 200 but does not exceed Rs. 300: Seven rupees fifty naye paise. Where it exceeds Rs. 300 but does not exceed Rs. 400: Ten rupees. Where it exceeds Rs. 400 but does not exceed Rs. 500: Twelve rupees fifty naye paise. Where it exceeds Rs. 500 but does not exceed Rs. 600: Fifteen rupees. Where it exceeds Rs. 600 but does not exceed Rs. 700: Seventeen rupees fifty naye paise. Where it exceeds Rs. 700 but does not exceed Rs. 800: Twenty rupees. Where it exceeds Rs. 800 but does not exceed Rs. 900: Twenty two rupees fifty naye paise. Where it exceeds Rs. 900 but does not exceed Rs. 1000: Twenty five rupees. And for every Rs. 500 or part thereof in excess of Rs. 1,000: Twelve rupees fifty naye paise.