Adsense checks For india are shipped via bluedart.They generally give the tracking code in the member area whereby we can track the consignment.But they donot give any contact number in the consignment,so if for any reason the cheque is returned then there is no clue for it again.One thing can be done is that keep with yourself local bluedart customercare number so that you can atleast track the returned cheque. So its better to keep a watch in your door for the cheque after you see that link of payment issued.One thing very good for google is that they even give details of the date when the cheque get cleared form the bank.