As much I know ISRO has less failure rate and they get the job with little budget in comparison to NASA or any other space agencies. This alone is the reason, one might be tempted to use Indian technology.
> India's Mars mission, with a budget of $73 million, is far cheaper than comparable missions including NASA's $671 million Maven satellite that is expected to set off for Mars later in November.
Source:
http://www.npr.org/sections/thetwo-way/2013/11/04/243082266/...
> India's Mars mission, with a budget of $73 million, is far cheaper than comparable missions including NASA's $671 million Maven satellite that is expected to set off for Mars later in November. Source: http://www.npr.org/sections/thetwo-way/2013/11/04/243082266/...
For failure rate comparison: http://www.vox.com/2014/9/24/6838079/india-mars-mangalyaan