Missing cat, Mallathahalli. Please Help

My 3 year old cat has been missing since last night, he saw an open door and escaped. He is an indoor cat and has only gone out a few times. Every time he escaped, he used to come back within a few hours. This time it has almost been a day and there is no sign of him. We're really scared. This is in Mallathahalli, NGEF Layout, near narayana e-techno school area. His name is Milo and he is an Orange and white cat. He has a white fur patch on his orange back. we have left out treats, food and his bed to lure him back. We really hope he comes back. If anyone finds him, please DM. Adding his photo in the comments