In Nectar in a Sieve, the theme that reflects Hindu beliefs is the cyclical nature of life driven by reincarnation, karma, and the pursuit of liberation.
Hindus believe in reincarnation and samsara, which is the cycle of life, death, and rebirth. This belief system is reflected in the theme of The nature of life is cyclical in Nectar in a Sieve. Hindus strive to free themselves from this cycle through actions that determine their next incarnation based on karma.