What is the STT in India?

Could you please clarify what STT stands for in the context of India? Is it referring to a specific tax or fee related to cryptocurrency transactions? If so, how does it work and what are the implications for investors and traders in India? Additionally, are there any recent changes or updates to the STT policy that investors should be aware of? Understanding the STT in India is crucial for navigating the complex world of cryptocurrency finance, so I'd appreciate your insights on this matter.