If this will be a recurrent, rather than one-time episode, then you're probably better off by flying first to some relatively cheap starting point in Europe, get the RTW ticket there, then use it for the India portions, back to the US, and eventually back to Europe before starting over again.

For example, DONE3s that originate in Sweden are almost $2000 cheaper than those originating in the USA. Buy a cheap (even one-way) ticket to Europe, maybe bum an eVIP or SWU from somebody at Coupon Connection (I suspect you know how) and then start from ARN (or CPH is also pretty affordable.) ARN-LHR-DEL (-HYD-DEL) - HKG-JFK... which would leave you with 6 N. America segments to use over the course of the rest of a year before you'd need to return to Europe (ARN, CPH...) to finish.

Of course you could, time permitting, add additional legs overseas in order to build up miles/status - maybe a middle east run before you finish, etc.