I would suggest to not go for the Exchange Later option of Flipkart. I purchased a phone for someone else and the Flipkart guy came 14 days later, failed to complete the setup correctly and install the app needed to check the device. The pick up person said he would come again the next day and instead cancelled the exchange.
Flipkart refused to schedule the pickup again saying it can only be done once, leading to the exchange device becoming a liability now.
Flipkart refused to schedule the pickup again saying it can only be done once, leading to the exchange device becoming a liability now.