Finally, this worked as it allows 110-240V power DC without any need for converter.
Recliner was smooth and working well.
Surprisingly, they have given option to attach 9v battery for each recliner in case of power failure.
Bad part was that I had to tilt this flat on its back and take out adpater in hand to remove screws and find out whether its compatible with power.
If this piece of info was present on the box or on the label, it would have been a cake walk!!