How much money do you have?
The Seas Exotics (F8 and F4) are nice for boxed fullrangers, though they need some help at both ends and are ~$1000 each.
At the high-end multi-way speaker level, there are the drivers for the Seas Thor/Odin projects, those should be around $1200 total (set of 6). Those are W18 and Millenium tweeter, look up the Seas website. There is also the very nice (W22 and Millennium) set of drivers that Linkwitz's Orion uses, you can clone that project with these drivers and a couple of subwoofers (The Eminence LAB12 looks suitable), the subs can be obtained in India.
At the bottom end are the drivers I'm using for my Seas build and very similar to the stuff in the Amphion and RMJ speakers, the L18 and 27TBFCG (all-metal) or the ER18 and the 27TDFC (paper woofer and silk tweeter), both projects are available on the Zaph audio site. These should be around $300 for a stereo set. For more projects, look up Troels Graven's DIY site, he has many projects using Seas drivers - the PMS comes to mind - a very nice clone of a Sonus Faber. All Seas, all paper, and superb looking performance. Once you select a project, getting the drivers is what you need to do.
I suggest the smaller 6" and 7" drivers, max 8". With some scrounging it is easy to get high power/large drivers in India, but quality mids and tweeters come at huge premiums. Everything above is located on Google and the Seas website, have fun
The boxes will not be very large, but it will attract the eye of customs. So be sure you have proper invoices for this sort of stuff.