Does Intex Aqua Ace Mini support OTG?

Yes, the Intex Aqua Ace Mini does support USB OTG functionality. The specification sheet released by the manufacturer confirms the availability of the USB OTG feature.
You can use the phone to connect your external drives to it and browse the files stored on the drives. Check the file format compatibility before proceeding. If there is any incompatibility, you will need to format the drive to the requisite format. Make sure you have backed up all your data on the drive though.

Yes, this model of Intex Aqua Ace Mini supports USB OTG. So you have this option besides bluetooth for connectivity as you can connect external drives through this option.

As per the released specifications of the model, the phone supports MicroUSB 2.0 and OTG functionality. You can use it for both data transfer as well as for charging the phone. Device can also be used as a portable data drive due to MicroUSB support. You can use the PCSuite or the normal file explorer for the file transfer.

Find the specifications details here: http://gadgets.ndtv.com/intex-aqua-ace-mini-3304

Yes, You will be able to use OTG functionality in Intex Aqua Ace Mini. You will need to buy an OTG cable because none comes with the smartphone. You can anytime connect your external storage. I will prefer you to download ES File Explorer because it is easy to use and comes with better user interface.

Regards,
Joy Joon