Day Trading ..Sebi Rule ?

Hi Traders,

I recently started trading and on one occasion i did a day trading. My brokerage for day trading is 3 paise. I bought shares which were trading below 100 Rs (1000 qty) and sold all the shares at the end of the day. Per quantity share value was 30rs while i bought it and 29.5 while i sold it ( yes , suffered loss). To my surprise i found i was charged a total brokerage of 60 rs ( 30rs+30rs), when checked with Broker, they said it is a sebi rule that if we trade any security(which is worth below 100rs) in a day trading, brokerage will be calculated per quantity basis( which in my case happened to be 1000*.03 = 30 one side). I was under impression that the brokerage would be around Rs17.85 ( 1000*30*.03/100 = 9Rs for buying, 1000*29.5*.03/100 = 8.85Rs for selling)
Can you help me in knowing if any such Sebi rule does exists or it is just the Broker who is charging me.

No such rules are there. I use Zerodha and even if I am trading share which is trading at Rs. 12, I am charged 0.01% as brokerage.

brokerage is calculated at share price and not on volume

so its minimum 1paise suppose

so a script of 50rs, per share brokerge will be .5paise but minimum is 1paise.

now if u buy 50 shares, ur brokerage comes out to be 1paise * 50 shares. which is 50 paise.