I read about something called 'Khanda-yoga' in Chapter 7. What was this practice and what other abilities of Baba are mentioned?

Chapter 7 of the Shri Sai Satcharitra describes some of Sai Baba's extraordinary spiritual abilities, including the practice of Khanda-yoga. This is explained as a miraculous process where he could disjoint his limbs, separating his hands, feet, and head from his body, and then join them back together as they were before. This was performed along with his state of Samadhi. The chapter also briefly mentions other esoteric yogic experiments he practiced, such as Dhauti, which is a method for cleansing the stomach. These feats are presented as examples of how Baba toiled for others and even bore the sufferings of his devotees upon his own body.