HKG-BOM-LHR same ticket only hand carry
Would appreciate some help.
May be travelling HKG-BOM (CX J) arriving at 11.55 pm and transferring to BOM-LHR (BA J) which departs at 1.45 am. Have 1 hour and 50 minutes and CX said MCT is 1hour.
Am I right that there is no need to clear immigration and no visa required?
Also, do CX and BA use the same or different terminals?
Is 1 hour and 50 min in this situation realistic?
Any tips on what to do and expect?
Thank you very much.