Thali or Thalli: How To spell?
The word Thali is misspelled against Thalli, which is plural of "Thallus"
Thalli has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings tha & i which should not be misspelled with single 'L'
Wrong Spelling:  tha-l-i  Correct Spelling:  tha-ll-i 
Find more wrongly spelled words of Thalli to spell it well.