Jesus in Aramaic his 1st language is Yesu or Yeshua. So, Saint Issa sounds like what Local Indians would call him in their dialects

 Many people still speak Aramaic today in parts of the Middle East so this language hasn't entirely died out. However, Aramaic is Jesus' native language. However, he also likely spoke Hebrew and possibly Roman as well because Jesus was an educated man of his times. I suppose you also could say he spoke Latin even though Latin now is a dead language in that how it was originally spoken has been lost and only the written form of it still exists. Though I think Italian and Spanish are two languages that likely evolved out of Latin to begin with. Just like there are people in India that Speak Sanskrit too but it likely is somewhat different than the original Sanskrit that Hindi and Russian and Tibetan and possibly Newari are based upon. (Newari is the language of Nepal)