In most of the Catholic churches in India the palms are blessed by the priest on Palm Sunday and then distributed among the people after the holy mass.
 There is a tradition of folding palm fronds into palm crosses, which are kept at the altar till the next Ash Wednesday.

In the South Indian state of Kerala (and in Indian Orthodox, Church of South India (CSI), Syro-Malankara Catholic Church, and Syriac Orthodox Church (Jacobite) congregations elsewhere in India and throughout the West), flowers are strewn about the sanctuary on Palm Sunday during the reading of the Gospel, at the words uttered by the crowd welcoming Jesus, "Hosanna!
Blessed is he who is come and is to come in the name of the Lord God".
These words are read to the congregation thrice.
The congregation then repeats, "Hosanna!",
and the flowers are scattered.
This is adapted from the older Hindu custom of scattering flowers on festive occasions, as well as the honour shown to Jesus upon his entry into Jerusalem.

Indian Orthodoxy traces its roots to the arrival in India of Saint Thomas the Apostle (traditionally dated to AD 52) and his evangelism among both the Brahmans of the Malabar Coast and the ancient Jewish community there.
Its rites and ceremonies are both Hindu and Jewish, as well as Levantine Christian, in origin.
In Syro-Malabar Catholic Church's palm leaves are blessed during Palm Sunday ceremony and a Procession takes place holding the palms.
In most of the Catholic churches in India the palms are blessed by the priest on Palm Sunday and then distributed among the people after the holy mass.  There is a tradition of folding palm fronds into palm crosses, which are kept at the altar till the next Ash Wednesday.
In the South Indian state of Kerala (and in Indian Orthodox, Church of South India (CSI), Syro-Malankara Catholic Church, and Syriac Orthodox Church (Jacobite) congregations elsewhere in India and throughout the West), flowers are strewn about the sanctuary on Palm Sunday during the reading of the Gospel, at the words uttered by the crowd welcoming Jesus, "Hosanna! Blessed is he who is come and is to come in the name of the Lord God". These words are read to the congregation thrice. The congregation then repeats, "Hosanna!", and the flowers are scattered. This is adapted from the older Hindu custom of scattering flowers on festive occasions, as well as the honour shown to Jesus upon his entry into Jerusalem.
Indian Orthodoxy traces its roots to the arrival in India of Saint Thomas the Apostle (traditionally dated to AD 52) and his evangelism among both the Brahmans of the Malabar Coast and the ancient Jewish community there. Its rites and ceremonies are both Hindu and Jewish, as well as Levantine Christian, in origin. In Syro-Malabar Catholic Church's palm leaves are blessed during Palm Sunday ceremony and a Procession takes place holding the palms.
Palm Sunday