I think as time goes by, ownership and directorship of these companies since 1994 is simplifying.
Today according to Companies House:
Redline is owned Taj Wali Khan (aged 65)
Red Eagle is owned by Sardar Ali Khan (aged 39), son of ??
Red Rose is directed by the 2 above, owned by ??, but Taj Wali Khan has significant control.
Taj Wali Khan bought Redline from Wali Khan in Nov 2022.
Then wifes / sisters ??
Mrs Parmeena Begum was a director until May 2025 of Redline.
Mrs Shah Begum is a director of Z&S Transport.
Lots of ?? , but it gives a current outline picture.
The creation of Red Group Buses Ltd to consolidate Redline and Red Rose is I guess a work in progress - legal and financial for Taj Wali Khan.
Red Eagle stays separate with Sardar for now at least.