https://en.wikipedia.org/wiki/Rani_Padmini#cite_note-45
https://en.wikipedia.org/wiki/Padmavat
https://en.wikipedia.org/wiki/Alauddin_Khilji
https://en.wikipedia.org/wiki/Siege_of_Chittorgarh,_1303
https://books.google.it/books?id=ZvaGuaJIJgoC&pg=PA41&redir_esc=y#v=onepage&q=Padmini&f=false
https://books.google.it/books?id=GiSUwULkK64C&printsec=frontcover#v=onepage&q&f=false
https://archive.org/stream/historyofriseofm01feri#page/320/mode/2up/search/Chittoor
https://archive.org/stream/historyofriseofm01feri#page/n39/mode/2up/search/Chittoor
https://www.academia.edu/21592121/Padmini_the_legend_that_was_or_perhaps_not
http://shodhganga.inflibnet.ac.in/bitstream/10603/29127/7/07_introduction.pdf pg 13, 14, 15
That's all, I guess. I tried to link directly to the pages I used as source but some links might not work that way and you might have to read the whole thing by yourself.
-Smolderhalder