ZH is a representative of Pakistan's Military establishment. Everything he says is to promote the agenda of Military establishment. The real reason, I think, he was brought in the lime light was to create a nationalistic zeal in Pakistani youth (and probably create a youth militia) and prepare them for the eventuality which is threatened upon us from our long time ally US of A.
He is using the Ahadith-e-Nabavi (PBUH) to forward that agenda. Neither he nor Pakistani army would be interested in a Ghazwa-e-Hind which probably has already taken place hundreds of years back.
The most important thing is that these are Ahadith, their authenticity has always been question; a million of them were fabricated and a plenty of them are in direct contradiction to Quran and if you think that makes the Prophet (PBUH) the biggest denier of Quran. Think about it, is that even possible!