When one joins Government service, whether Hindu, Muslim or any other, one gives undertaking that one will attend to the call of duty as and when required. It means that one undertakes to attend one's duty during the hours of duty fixed by the employer and take leave of absence with permission, which may or may not be granted depending on exigencies of work. Leave of absence that one can avail is also regulated and fixed. Hence when a Muslim (or any other) joins Government service he voluntarily surrenders his right of absence from duty as and when he likes. He can take leave with permission, go to the mosque and pray.
In countries where Muslims are majority others are persecuted. Why not you raise your voice against such persecution? The so called fight for freedom in Kashmir, they call jihad. Please raise your voice and tell them that there is no place for jihad in modern world. UN will not support jihad. Respect the religions of others the same Hindus respect your religion here.