Ibibo Group / Goibibo — regarding cancelled flight

I have booked a flight from abu dhabi to hubli via mumbai which was confirmed. But after few days i received a message saying the connecting flight from mumbai to hubli (Pnr no.: ybxdg) which is supposed to fly on 17/08/19 is cancelled by the airlines. This issue was discussed with your online chat executive ms. Varsha and upon confirming with airlines she provided me two options 1) total refund of rs.7170 and 2) flight arranged on next day i. E. 18/08/19 without any additional charges. But now due to cancellation of connecting flight my entire trip is in vein as i was supposed to be in hubli on 17/08/19. So i want to know can i reschedule my international flight from abu dhabi to mumbai (Pnr no. Hw1inr) which is supposed to fly on 16/08/19 to 15/08/19 on same time so that i get time to reach to my final destination (Hubli) via road transportation. Thanks in anticipation.

Vinod
Mobile no. :[protected]