On May 27, 1991, while campaigning in Tamil Nadu on behalf of Congress (I), Rajiv Gandhi was assassinated, apparently by Tamil extremists from Sri Lanka. In the elections, Congress (I) won 213 parliamentary seats and put together a coalition, returning to power under the leadership of P.V. Narasimha Rao. This Congress-led government, which served a full 5-year term, initiated a gradual process of economic liberalization and reform, which has opened the Indian economy to global trade and investment. India's domestic politics also took new shape, as traditional alignments by caste, creed, and ethnicity gave way to a plethora of small, regionally based political parties.