Dear Friend,
Videocon V451720 Have 3 Versions:
(1) V45GD : Videocon_V451720_456_91_V1.0_V45GD_20160918 (MTK-CPU) :
DOWNLOAD
(2) V45ED (4 band) : Videocon_V451720_454_91_V1.0_V45ED_20160926 (MTK-CPU) :
DOWNLOAD
(3) V45ED (6 band) : Videocon_V451720_454_91_V1.0_V45ED_20160518 (MTK-CPU) :
DOWNLOAD
So Which One Do You Require?