I’ve reported previously (see here) on Israel’s IAI’s TaxiBot aircraft towing system. Three Indian airlines (SpiceJet, Jet Airways and Indigo Airlines) are currently evaluating the system. A SpiceJet flight used TaxiBot for the first time to take off from Indira Gandhi International Airport in Delhi.

https://www.timesofisrael.com/indian-flight-uses-iais-taxibot-to-cut-fuel-costs-pollution/