Is the Nifty 50 a work of art \u2013 like Star Wars? Over the coming weeks, the National Stock Exchange of India Ltd. will assert an intellectual property right over its popular equity benchmark. It\u2019s seeking an injunction against Singapore Exchange Ltd., which wants to start its own derivative based on publicly available settlement prices of Nifty futures contracts. Such lawsuits are nothing new in the world of index providers and exchanges. In 2006, the New York Mercantile Exchange failed to persuade both a U.S. District Court and the Second Circuit Court that Intercontinental Exchange Inc. was violating the copyright of Nymex settlement prices by using them in its over-the-counter derivative contracts. The judges ruled that settlement price wasn't one expression of an idea where others were possible. Rather, it was the only way to express Nymex crude\u2019s closing price. Giving Nymex a copyright would amount to giving it intellectual ownership of\u2026 prices. And that would be ridiculous. The whole \u201cmisappropriation\u201d argument \u2013 another shouldn't harvest what one has sown \u2013 was the legal norm 100 years ago. However, today\u2019s judges realize that too much rights protection for things that are facts \u2013 and not creative intellectual property like Darth Vader\u2019s helmet or even his peculiar breathing \u2013 could kill finance. The tussle between India and Singapore over where financial risk pertaining to the former should be traded is getting tiresome. Hedge funds investing in India were perfectly happy with SGX Nifty futures; and NSE earned a license fee from SGX. But in February, NSE and two other Indian bourses ganged up, and said they wouldn't allow their prices to be used in overseas contracts. NSE gave SGX six months to wind up an 18-year-old product. MSCI Inc. lashed out against the move, saying it could threaten India\u2019s emerging-market classification. SGX, meanwhile, found a clever workaround to protect its own revenue. Its new contracts would merely take published settlement prices of NSE\u2019s contracts on the last Thursday of every month and be called SGX India futures. All investors will know that what they\u2019re really dealing in is the Nifty 50, except NSE won\u2019t get any license fee. Now that the June launch is approaching, NSE has gone to court. Suppose it does succeed in getting an injunction and also finds a way of enforcing it in Singapore. SGX won't be the only loser. Global money managers will also be affected. Come June 4, there will be no SGX Nifty. If there\u2019s no SGX India futures either, investors will be forced to go direct to the onshore Indian market, or cut their exposure. Granted, NSE broker-members can now accept U.S. customer funds for trading derivative contracts without first registering with the U.S. Commodity Futures Trading Commission as commission merchants. However, foreigners are reluctant to go anywhere near the Indian tax system. It\u2019s not just the five different levies on capital that are bothersome; dealing with a whimsical bureaucracy that thinks money raised by startups should be taxed as income is a daunting prospect. Eventually, Indian exchanges will probably want to take overseas clients\u2019 money to a tax-lite regime like GIFT City in Gujarat, Prime Minister Narendra Modi\u2019s alcohol-free home state. To this end, they\u2019re asking that the regulator allow omnibus structures, wherein an India-registered global investment bank can pool clients\u2019 funds and bring them into GIFT. The regulator simply isn\u2019t ready to deal with the money laundering that may occur when a bank hands over direct market access software to a dodgy sub-account. That risk should trump any schadenfreude from making SGX squirm. And don\u2019t forget the Jedi out there: MSCI could still whip out a light saber if India ends up curtailing global investors\u2019 access. NSE should really stop breathing like Darth Vader.