Siddhas or Yogis are those who have gained super-human powers through meditation or tapas. The Ashta-Maha siddhis detail some of these. But there are other 'smaller' siddhis as well. e.g. in Ramakrishna Kathamrita, they mention a Pavhri baba who subsists only on air.
Have any of you met such a person while traveling in India ?
What powers did they exhibit ?