How can we build a custom visual using D3.js(Wt r prerequisites to build a custom visual using D3.js

Hi Bindu_tamidla, I'm also interested in that topic. I'm not an expert and so far I've used R and Python with third-party code and made some basic customizations. I'd like to take advantage of the D3 graphics library and use it in my reports. From my limited experience, for R and Python, I've needed to install libraries (the program itself tells you if you don't have them installed). Unfortunately, I didn't progress further because my clients didn't approve its use with their security protocols. I mention this so you are aware of it. I think with D3 you could try inserting the code of a D3 visualization that you're interested in into the component that Power BI provides. Sorry that I can't be of more help at the moment. I hope someone can provide more guidance. I'm really interested in the topic.
Ryan.
Power BI on Mac