As already mentioned there are RS 300 AMC for demat account.

Now Rs 600 shall be yearly charges for Direct MF investment subscription

The examples mentioned only talk about large SIPs. But not all investors have that much money.

So,Lets take a small investor example as follows:

SIP amount = Rs 1000

Yearly investment = Rs 12000

As for regular option - 1.5% upfront and 1% trail commission it works out as follows:

Total Upfront brokerage for above investment = Rs 15*12 = Rs 180
Total Trail brokerage for above investment = Rs 12*10 = Rs 120

Total outgo amount = Rs 300 for the total investment of Rs 12000 per year

Now as per COIN direct investing, assuming same investment amount of Rs 12000 and no upfront and trail brokerage, but annual charges of Rs 600 for COIN subscription. This amount is exactly double that charged for regular plan.

My question is how COIN is at all beneficial for this Small investor?