deriv LSK ETT STT aSTA ALPH OLDHOMEPAGE NEWHOMEPAGE
Vowels do not change before consonants.
The consonant, too, does not change, unless it is ch छ्. The ch छ् (but not the c च्) turns into cch च्छ् after short vowels by checa.
a अ + ch छ् → a cch अ च्छ्
i इ + ch छ् → i cch इ च्छ्
u उ + ch छ् → u cch उ च्छ्
R ऋ + ch छ् → R cch ऋ च्छ्