The inscription reads:
रस से रस मति माया मति रस कर तोरे अस सका १५ रोता ४ स २००४ स
My phonetic (possibly incorrect) translation of Sanskrit into English is:
rasa se rasa mati maya mati rasa kara tore asa saka 15 rota 4 sa 2004 sa
The last line ending seems to be a date in the Buddhist calendar 2004 - 543 = 1461 CE:
15th rotating ? day of 4th month samvat era in year 2004 samvat era