deriv LSK ETT STT aSTA ALPH OLDHOMEPAGE NEWHOMEPAGE
The /jhaS or "fish letters" are the aspirated voiced stops:
jh झ् bh भ् gh घ् Dh ढ् dh ध्
sung in the /zivasUtra as
jha bhaJ | झ भञ्।gha Dha dhaS | घ ढ धष्।