i need to know about are SIP is tax free for NRI.

I am in NRI based in the UK. I had invested in company bonds 2 years back via NRE account and recently found the company was deducting TDS on interest paid. Are they not tax free?

What are the important points about the LTCG tax that I need to be aware of to make the best use of the framework?

What are the important things I need to know about being an option seller?

What are the key terms I need to know about indexation and indexed assets?

What are the key things that I need to know about derivatives trading in India?

Are there some basic things I need to know about options when I am starting off?

I propose to invest in Gold ETFs (Exchange Traded Funds). What are the basic things I need to know about gold ETFs before investing in the same?

What are some basic things I need to know about a split versus a bonus issue?

What are some elementary things I need to know about futures and options?

What are some of the key macro data that I need to know about while participating in the stock markets?