Pakistan were scheduled to play the series opener in Faridabad on Nov 6 after arriving in Delhi on Nov 2.
Now, Pakistan would land in Delhi a day earlier and will play a warm-up match next day before leaving for Guwahati.
The second ODI in Mohali has also been preponed by a day. It will be played on Nov 8 now.
The revised scheduled is subject to approval from the Pakistan Cricket Board (PCB).
Pakistan will play five ODIs and three Test on their tour to India.