I found a shop selling used VRLA, AGM batteries.
They claim to be direct importer of these batteries and that they are 2011 date manufactured, no proof though.
The brand of batteries is Yuasa(made in UK) and is 6V 100AH each.
I found this through a neighbour who also bought used imported batteries from this shop and is highly satisfied.
I wonder if anyone had any such experience in this regard?