It is believed that Humayun received a 'raakhi' from Queen Karnavati of Chittor when her Kingdom was invaded and Humayun rushed to her rescue leaving aside his campaign in Bengal. It speaks of the spell the Raakhi had cast even on those of alien faiths. The princess sent a Raakhi to the Mughal Emperor Humayun to save her honor from the onslaught of the Gujarat Sultan. The emperor who was engaged in an expedition against Bengal, turned back and hastened to the rescue of his Raakhi sister. But, alas, to his utmost sorrow, he found that the kingdom had already been overrun and the princess had committed Jauhaar, i.e., leaped into the flames to save her honor.
In the olden times a tiny bundle of rice, gold and white mustard seeds made
up a 'rakhi'. After getting up early in the morning and doing the rituals and
puja of the day this 'rakhi' was consecrated and tied by the Minister on the
wrist of the King.
In North India a servant of the household tied a rakhi on the wrist of the master, this assured him of protection. Earlier this custom was prevalent only in the Northern states but today every sister makes it a point to tie one or send it by post if the brother is away. But in the present day this can be effectively used to create the feeling of universal; brotherhood.