machli = मछ्ली it means Fish
machli = मचली it means "excite to do something"
for example रमा पानी देख नहाने के लिये मचली ( Rama pani dekh nahane ke liye machli ) when Rama saw water she got excite to bath .
machli = मचली it also have another meaning which "Nausea "
for example उसे हवाई जहाज पर सफर करने से हमेशा मचली होती है ( usee hawaii jahaj par safar karne se hamesha MACHLI hoti hai ) She always feel nausea while traveling aircraft