Yes, Moto Z2 Play does come with free style mod.
Yes, Moto Z2 Play does have Corning Gorilla Glass protection.
It's manufactured in India and carries the brand warranty. Yes, you can make calls with the help of Jio Sim.
Yes, Moto Z2 Play 64GB comes with latest 7.1 Android OS so you may not require to update it immediately but going forward, company will produce OTA updates.