GoAir — Changed itnanary flight from 1.5 hours to 10 hours

Hello,
I have booked flight from pune to ahmedabad (PNA XE1JKK) for 17th Nov, the flight was to depart 08:45 and reach Ahmedabad on 10:15 am, when I tried to do web check in today, i see that it has changed to depart from Pune at 09:55 and then layover at Delhi for 6 + hours, and then reach Ahmedabad to 19.50. No intimation was given for this change! Highly unprofessional !!