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Priest puts on the phiro (lit. 'fruit'), a small black cap which the
priest must wear during all public prayers. It consists of seven
sections which indicate the full priesthood of the celebrant. Bishops
including the Patriarch wear it under the Eskimo.
[Note: In Malankara, a cylindrical black cap is used by priests in liturgical as well as secular settings. Priests in the Middle East wear such black caps in non-liturgical settings, while bishops and the Patriarch may use a red cap. These caps were part of the secular dress required of Syriac Christian priests in the days of the Ottoman empire. However, the skull cap shaped phiro is always used in public prayer.]
If the priest is a monk, he then puts on the eskimo, a hood worn by monks at all times.
[Note: In Malankara, this vestment is incorrectly referred to as 'masanapsa', a corruption of masnaphto, described below.]
You can refer http://sor.cua.edu
for the same!
Thanks and Regards
Vineeth John Abraham