I was on a student visa in UK. My visa got expired and I overstayed 3 yrs more in addition to my visa. So in simple I stayed 3 yrs as illegal in the UK. Then I came back to my country deliberately. Remember I was never caught and deported. Is there any ban on me? Or is there? Will it affect my visa application for other countries. My passport is clean. There is no exit stamp on it. Because it was expired when I came back and I made temporary travel document from my home country embassy. So am I eligible to travel to UK or other countries again?
You can file a Subject Access Request to see what the government has on you.
This is NOT an endorsement, however, to lie on your visa application. That might get you in deep trouble. Remember: I am just a random Internet stranger rambling on a random website.