Indian AWACS

You have a report on India's efforts to improve its surveillance and command control assets, where they appear to be heading towards a two tiered system.

First they are developing an AWACS system based on the IL-76/A-50 with Israel's phased array Phalcon system in a conventional, though non-rotating dome:


They are also looking at procuring a smaller, somewhat less capable system, likely the EMB 145 Erieye:


The theory here is that this allows them to have more assets available at any given time, with the more capable assets only needing to be deployed where the improved capabilities (range, endurance, and more radar operators) are required.