As Dawn has already said the records are on FindMyPast ( and also on ancestry , but I find FindMyPast easier to use in this instance ) but later records are restricted and don't give full information.
There is a tree on ancestry which gives the following information :
"Neil Douglas Warren Parkinson b 29 May 1924 India died Sep 2006 Hereford
Zena Alexia Meneaud / Parkinson b 5 Jun 1932 India died 3 Mar 2015 Swansea , Glamorgan"
The tree also gives Zena's father's name as Samuel.
The couple arrived in London on the SS Strathnaver 13 Nov 1955. He was a mining engineer and she a teacher . They were going to an address in Hereford.
Zena Alexia Meneaud 1932 Cuddalore , Madras , father Meneaud. Archive ref N-2-151 Folio 62
A search of the records 1932 plus or minus 10 years gives several possible siblings born in Cuddalore , but I cannot name them as they may be living. RootsChat has a strict policy of not naming those who may be living until death is established.