DRDO issued a global tender for Rustom 2 EO pod , the one you posted did not meet the required specs , which was set high .
High end comlex sstems like EO pod are not strictly indigenous products. They contain multiple components sourced from abroad. System engineering , integration , gimbal , stabilization , algorithms are generally local . And developing a system doesn't mean it will translate into a buy . There is something called capability build up which increases as one develops a product irrespective of whether it gets bought or not . Progressively new technologies are developed in newer versions or upgrades untill it reaches a point where it satisfies the user requirements.