I really couldn't find a lot of information on these coin out side of the Coin India website and a mention in Numismatic Evidence of the Alchon Huns Reconsidered by Klaus Vondrovec. Which by the way is fascinating in the extreme. Rather than have me butcher this very complex and intriguing new history I urge you to read the paper. Found here.
https://www.academia.edu/880238/Num...reconsideredThe coin follows the standard Khingila Type.
Gandhara, India
AR Drachm (AD 440-490)
26 mm x 2.56 grams
Obverse: Bust of Khingila right wearing domed tiara and double drop earrings, Brahmi Legend -Raja Lakhana Udayaditya.
Reverse: [Zoroastrian fire alter flanked by two attendants]
Ref: Gobl Dokumente Em.79
