Thank you all!! Decided to make a quick run to the workshop and showed the problem to the service guy. He tried to find the menu but could not , disconnected the battery terminals and problem solved. Everything was working post that - in the process he also decided to tighten up a few other things which had started to creak a bit. Ofcourse i did ask him why it happened and he said " virus" , i was expecting an answer like this but i dont buy it at all.