Who was Mavshibai and what was her specific method of serving Baba?

Mavshibai, whose original name was Venubai Kaujalgi, was a deeply devoted follower of Sai Baba, so much so that Baba himself affectionately called her 'Mother' (Aai). As described in Chapter 24, her method of service was unique and intense. While pressing Baba's stomach, she would become completely absorbed, twisting and churning with both hands as if grinding buttermilk. The text notes this 'extraordinary way of pressing' was an expression of pure, guileless love. Despite the force she used, which made her breath uncontrollable, Baba remained completely at ease, accepting her fearless and heartfelt devotion.