I've been living in UK for almost 5 years . I have indefinite leave to remain in the UK. I have a Pakistani passport, and it has been expired for two months, plus I started studying again last year, and I'm a full time student now . I was under the impression that I don't need to renew my passport because I have an indefinite leave to remain in this country . But recently I randomly mentioned to someone that I might need a valid passport. My question is do I have to up date my passport? Is there any other institute ID except passport? I don't want to travel anywhere, Ijust want to make sure I am not creating any trouble for myself.