Apple India — Complaint against apple iphone 5s

Address: Bangalore, Karnataka, 560001

I am a user of i phone 5s (Space grey) 16gb bearing model no. Mf352hn/a. The phone has been bought in february and is just three months old. However, the phone's functioning is not upto mark and is faulty.
1. The phone's charging micro jack/ lightening connector is not working and the phone has been discharged completely due to which the phone is not working.
2. The phone has a tendency to hang at frequent intervals inspite of an updated software. This is a problem that was least expected from an apple product.
3. The touch id sensor gets stuck in the middle while pressing and needs to be pressed again and again to work. It is not smooth in its functioning again causing inconvenience.

Kindly suggest solutions as the phone is a new one and under warranty.