Just login to your Google AdSense Account.
Then click on Payments section, there you will find you Payment Issued, just click on details.
In details just search for Payment Number, payment number will be normally in format for eg. 073217806 now you just have to remove the first zero from the Payment Number after removing zero it will look like this 73217806.
Now just navigate to www.bluedart.com website and then just enter the payment number without zero in the text box of tracking and select Ref no. radio button and then click on go.
You will be able to get your details of your shipment sent by Google AdSense, normally Blue Dart updates Google AdSense tracking details on their website on every Second or Third Saturday or Sunday midnight.