Am i eligible for the visa 144hrs?

Yes, of course. You should just keep in mind that your flights have to be of nonstop between the places you have mentioned in your inquiry.

Also, you are advised to use correct terminology because this is 144 hour visa free transit and not a 144 hrs visa. There is no visa at all. There is just a temporary entry permit that you will get in your passport at the moment when you exit the airport in Shanghai. This permit is for free and the formality is minimal.