Consecrated Remains
Nirmālya ('auspicious remainder') refers to the flowers, garlands, tulasī, sandalwood paste, and comparable non-food items that have been offered to the archa deity during worship and are now charged with divine presence. Unlike ordinary objects, nirmālya has been sanctified through the act of worship and the Lord's acceptance.
Grace Flowing Through Objects
The theological basis for nirmālya: when an offering is made to the Lord and He accepts it (in the sense that the arcaka presents it to the divine presence and worship is completed), the object is understood to carry the Lord's grace. Receiving nirmālya — touching the offered flowers or tulasī to one's head, or wearing an offered garland — is a way of receiving that grace in a tangible form.
Nirmālya vs Prasāda
Nirmālya is closely related to but distinct from food-prasāda. Food returned after naivedya is properly called prasāda, while nirmālya commonly denotes removed flowers, tulasī, garlands, sandal paste, and similar remnants of arcana or alaṅkāra. “Vibhūti” (sacred ash) should not be introduced as a standard Śrī Vaiṣṇava example. All items received from Bhagavān are honoured, but the technical terms should not be collapsed into one another.
Significance in Bhāgavata-Sambandha
For Sri Vaishnavas, nirmālya from great ācāryas' worship is especially valued. Receiving the nirmālya (especially the garland or the pādatīrtha — water that touched the feet) from a great ācārya is considered a powerful act of bhāgavata-sambandha — connection with the Lord through the medium of His devotees.