Hello Shankar,
I did a DIY job. I asked the distributor to send me a 45’ x 45’ piece. He did the joining and sent it to me by transport. I paid him a little over INR 22,500. This was in July 2015. I then got a few farm hands and got it laid. Later some miscreants burnt a portion of it and I got some more material from the distributor, then cut out the area using a large scissors and patched it up using an adhesive from Pidilite Industries (the one used by puncture repair folks). We used sandpaper to scrape it a bit. It was fairly easy and didn’t even seem too obvious.
If I were you, I would just buy a 40’ x 30’ piece, that should give a couple of feet overhang on each side and fix it yourself with the help of farm hands.
Let me know if you have any further questions, Shankar.
Cheers,
Ronnie