Originally Posted by NISHANTJ_2K
I just flashed the ROM from the link(I had updated earlier) but I have same size of internal and root drive that of 8gb should have. falsh your device with stock ROM of 8gb version via flash tool confirm the storage then install this ROM
Though I guessed it as the only solution , I was not keen for want of time. Week end offered me enough time to plunge into it. Flashed the Stock ROM with SP Tools and then flashed this MIUI ROM with TWRP recovery. Now the Storage seems alright (screen shot attached). The beauty of this ROM is that it allows you to mix Icon from one theme, Dialer from another theme, Status bar from the third and so on. I am loving my phone now for the freedom I have to modify the UI. The only thing which I do not find a theme for is e-mail. Excellent.