This was announced by the Vatican on Saturday.
The former Syro-Malabar bishop of Melbourne in Australia, Bosco Puthur (78), was appointed Apostolic Administrator of the archdiocese by the Pope at the end of 2023.
Puthur was to help pacify disputes over liturgical and personnel issues that had been smouldering for years.
In Puthur's place, the synod of the Syro-Malabar Church in Saint Thomas Mount in the state of Kerala, which has been meeting since Thursday, elected the Archbishop of Tellicherry, Joseph Pamplany (55), to replace Archbishop Raphael Thattil (68).
A year ago, Thattil was elected Grand Archbishop and thus head of the entire Syro-Malabar Church as well as Archbishop of the Ernakulam-Angamaly Archdiocese and appointed by the Pope.
In order to support Thattil in pacifying the unrest in the diocese, the Pope had appointed Bishop Puthur as administrator.
In autumn, however, thousands of believers in Kochi demanded Puthur's resignation. He had previously announced that he would only allow eight deacons to be ordained as priests if they undertook to celebrate mass only according to the reformed liturgy.
Years of dispute
The central archdiocese of Ernakulam-Angamaly has been shaken by a liturgical dispute for years.
The sometimes violent protests are directed against some of the points decided by the synod to standardise the celebration of the "Holy Qurbana", i.e. the service in the Syro-Malabar rite.
The main issue is whether the priest should celebrate the Eucharist facing the congregation or the altar.
The current synod of 54 bishops, which is meeting until Saturday, also wanted to look for further steps in this regard.
A compromise reached in the summer failed, as did several appeals by the Pope for unity among the faithful.
The plan by opponents of the liturgical reform to found their own church was rejected by Rome, the previous administrator Puthur declared at the end of October.
In the end, protest communities threatened a financial boycott against the archbishopric.
With around five million believers worldwide, the Syro-Malabar Church is the larger of the two Eastern Churches in India that are linked to the Pope.
Of its 35 dioceses, 31 are in India, with a further four in the USA, Canada, Australia and Great Britain.