Performing: Asthi Visarjan is fundamentally a Hindu ritual tied to beliefs about the soul, reincarnation, and Moksha through the Ganga. While the core act might be performed by anyone with faith, the accompanying Vedic rituals and mantras are specific to Hindu tradition, usually performed by family members or designated priests. If a deceased person of another faith wished for their ashes to be immersed in Ganga out of personal reverence, it can be done respectfully, perhaps with simpler prayers according to their belief or universal prayers for peace, possibly without the full Vedic rites.
Witnessing: Foreigners and people of other faiths can generally witness the ritual from a respectful distance at most public ghats. However, sensitivity is crucial. Avoid intrusive photography, maintain silence, and respect the family’s privacy during their solemn moment. At cremation ghats like Manikarnika, while observation is often permitted, extreme sensitivity and unobtrusiveness are expected.