Hi Naresh.
It's easy enough. Remove the 2 plastic end caps on the ends of the rails in the back seat footwell, held on by 2 screws. Using a pair of long nosed pliers release the springy end stop at the front of the seat on the centre bar. Pull back the seat adjuster so the seat can move freely backwards and push all the way back, while keeping the back of the seat up. As the runners slide clear of the rails, youshould, with some effort, be able to lift the seat up and out. Not sure about the airbag, I think this can just be unplugged.