Just to update that a few days back, I had a query about the extra carpet for the trunk space. Anyways, I bought a piece of carpet, took it to the poshish-man and had him apply a layer of plastic under the carpet. Finally, this new piece of carpet was placed over the original carpet and here are some pics:
Now if there is any spill on this carpet, I don't have to worry about it as the plastic layer underneath will stop it from damaging the original carpet. Wasn't expensive, the entire cost was less than 300rps.