What should be the duration of daily Pranayama? | Yog Yatra (14 July 2021)

Yes, Pranayama should be done daily but is there a duration for all the yoga exercises of Pranayama technique? Baba Ramdev explains the correct time duration required for all the exercises related to Pranayama. Apart from this, he explains how breathing should be done via lungs and not stomach. Take a look