Nandyarvattam flowers / നന്ദ്യാര്‍വട്ടം (Tabernaemontana divaricata).....From My Garden.

rekh@ c@n@r@ has added a photo to the pool:

Nandyarvattam is used in every temples. The flowers of Nandyarvattam are white in colour. Two different forms - idampiri and valampiri are used in temples. Nandyarvattam is used for Saraswathy pooja.