Thank you roj leather and Simon for your recommendations. I like the hanging chair and the almanda creeper on the wall. This will certainly liven up the patio.

Some kind of teak wood would be best. IPE is what this looks like. Please purchase responsibility as it is harvested by clear cutting in some areas. FSC is best.

Hi drmdilip -- While I waited for my trumpet vines to fill in sufficiently to provide summer shade, I sewed three matching striped shower curtains together, using the button holes on each end to tie it in place. I did this because as the vine was growing new, each thin runner would drop between the rafters rather than grow straight across. After a few years now, those thin runners have become a massed layer of thick vines, all of the new growth is straight up and by the end of summer I'll be able to easily remove my temporary support and have a roof of vines. It's not rainproof though -- for that, polycarb is practical, and I love the copper above!

vedikaseth Bombay rains are harsh! The one thing you can do is use flexible covers that work similar to roller blinds, and are transparent which allows the light to enter. There are many companies that offer such a product. Just choose one where the installation is easy and taking down the sheets is not an issue once the rains are over. Do keep in mind however that the water will still enter the balcony, you will simply be reducing the force of rains, and will require a water outlet.