1. This is the full tracking of your parcel:
China Post Register Air Mail Tracking System
Parcel No.RS240981103CN tracking result
2016-09-14 16:50:36.0 Guangzhou international parcel process center received
2016-09-14 23:23:45.0 Guangzhou parcel process center customs scan
2016-09-15 00:11:51.0 leaving Guangzhou parcel process center ，next station Guangzhou Airport
2016-09-15 10:30:18.0 Guangzhou Transit Station export security scan
2016-09-15 14:02:32.0 Guangzhou Transit Station export customs scan (domestic transit )

2. Your parcel might be transferring to an other city that can fly to India. If so then you should see some more tracking in a couple of days. If you don't see any tracking in the next 5 days, then maybe your parcel has difficulty passing the Export Customs scan. May I suggest you read this:

What is the status of “Export Customs Scan” ? How long it will take?

3. When the 15 days are attained, then you could contact seller and ask him to verify with China Post to find out what is wrong with the parcel.

4. You can track your parcel here:
http://www.track-chinapost.com/en

Hope this help.