Wildlife Spotting

This transplanted "Bonsai Tree" was brought by train from "Rudolph cottage" in Bangalore after the "Sale" of my Bangalore residence in 2009. I regrew it in a pot along with money plants in my small apartment in Mumbai. This 10 year tree also "died' inbetween, totally drying out into twigs.I trimmed its branches,thinking it "Dead" but left it in the pot, not uprooting and throwing it away.Miraculously, after approx 2 months the twig regained its leaves , the same visible in the photo.
PLEASE HELP ME IDENTIFY THIS STRANGE COMMON PLANT WITH A BIZARRE" PLANT MIGRATION HISTORY"?