I think there is a good deal of truth in the idea that the civil war never fully ended.

I don't know what role India may have. Pakistan is certainly concerned about their level of activity in AFG and Karzai seems to use this at times to roil PAK.

I suspect Iran is not as active as they would like to be. There is a good deal of residual good will towards Iran among the Hazara for Iran's support during the Taliban era and the Soviet War. However, the Khalili pretty quickly distanced himself and his party from Iran after the fall of the Taliban government. He shut down the Iranian Consulate in Bamian and it was turned over to NDS. I am not sure what sort of ties Akbari may have maintained or cultivated.