Hi @Krishnendu Pinescript is a code feature of TradingView, it isn’t extended to the hosted library that is extended to us.
We highly recommend using TradingView, Dhan possibly is only broker that made TradingView and its core integrations primary in India while some of large brokers supported other charing libraries. Now we are seeing everyone following.
We have an order type Webhooks incase you missed it, many of our users actively use it for trading via TradingView. More on that here - Introducing: Webhooks as Order Type on Dhan. Now do Options Trading on TradingView.com