Yes, Guru 1200 comes with charger as in-the-box accessories.
Yes, Guru 1200 does have warranty support. It has 12 months warranty on mobile phone and 6 months warranty on acceossires.
Yes, Guru 1200 does support the Telugu language.
No. You cannot download WhatsApp in this phone.
No. Guru 1200 do not have camera option.