Amibroker + data feed do add to the costs.
It took Amibroker almost a decade of improvement to come to this level. Do any of the charting platforms provided by indian brokers provide system writing? Conditional triggers? spread over 20 different parameters?
The best you can ask for is higher ticks, which is there in NOW, so you can push it into Amibroker. Yes, there is a small monthly cost of about 300 odd rs, but if you are an active trader, does 300 rs matter?
If it does, then maybe you have to suspend trading till the time some broker provides a good charting platform free of cost.
BTW, I doubt many people use pirated version of Amibroker, so all you are paying is 300 odd rs per month.