LoL! Mahathir is not a Jai Hind. Its more complicated than that. He hates India because of its policies against the Indian Muslims. In Malaysia, he treats the Hindu Indians just as badly as the Chinese.
However though, Mahathir still has that Indian DNA. So that explains his twisted racist mindset. He declares himself a "pure Malay", and to justify that even further, he officially made the Muslim Indians of Malaysia to be "Malays" too, and they would enjoy the same favoured status as the original Malays. All this while the Hindu Indians get treated as second-class citizens with inferior rights. Yes, this is effing confusing, but only an Indian mindset can come up with a race-hierarchy system as f**ked up as this. So, Mahathir is not a Jai Hind, but is his own Jai-Muslim-Indian-Malay prick.