Regional carrier Star Air on Saturday commenced operations of its Embraer E175 jet on the Bangalore-Hyderabad-Jamnagar route, offering business class along with the economy. The airline said initially it will operate three flights per week ((Tuesday, Thursday and Saturday) on the Bangalore-Hyderabad-Jamnagar sector with E175 with a second leg on the same sector on the Embraer E145 till May 23.