What is the name of the ceremonial salutation in the Mughal era in which the courtier placed the palm of his right hand against his forehead and bent his head?

Kornish

The correct answer is Option 1 - Kornish

Kornish was a form of ceremonial salutation in which the courtier placed the palm of his right hand against his forehead and bent his head. It suggested that the subject placed his head – the seat of the senses and the mind – into the hand of humility, presenting it to the royal assembly.

Other options:

Paibos means kissing the feet.
Sijda means complete prostration.
Zaminbos means kissing the ground.