Hey everyone, thanks for all the replies. I was only inquiring because I was learning about Gurmukhi, that was all. I simply wanted a solid list of letters and couldn't make up my mind about this ਕ਼ Kakka pair bindi.
I can tell everyone this about it though, to kind of give some resolution. It is definitly not one of the official 35 original letters and not even part of the later revised edition that included the 6 pair bindis (making it 41 total)(I think we all knew this anyway).You will never see it in the Guru Granth, etc..
I was just curious. You have to admit, the English "Q" sound is not represented by any of the current 41 letters of Gurmukhi. Probably, my opinion only, someone added it just for loanwords. Who ever this person was probably didn't have any authority to do so, so it was never accepted (this is just a wild guess).
And the most solid information I have on ਕ਼ Kakka pair bindi is that it does not exist in the IPA library. However, the standardized 41 letters are all represented in the IPA library. If ਕ਼ Kakka pair bindi was the real deal, it would be in that library.
Not to complicate things though, the bindi (below) and the ਕ (Kakka) both exist in the IPA library, so you can type it. I tried to ask one of the Khalsas about this and he told me he never heard of it and that is as far as I have went with this besides my own personal research.