Yes, you can use Jio 4g sim card in this phone.
Yes, you can get EMI on a debit card, conditionally, your card is eligible for it. Check with your bank (ICICI & AXIS) if your debit card is eligible or not.
Vivo V5s is available in Matte Black, Rose Gold, Crown Gold and Space Grey colors.
You will get Vivo V5s, Vivo XE100 earphone, User manual, Micro USB to USB Cable, USB Power Adapter, SIM Ejector Pin, Protective Case and Protective Film (applied) as in-the-box accessories.