NEW DELHI - India and Pakistan Saturday exchanged lists of their nuclear installations through diplomatic channels in the Indian and Pakistani capitals separately, the Indian External Affairs Ministry said.

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The lists were exchanged through diplomatic channels simultaneously at New Delhi and Islamabad under the Agreement on the Prohibition of Attack against Nuclear Installations and Facilities, the ministry said in a statement.

Both countries have been doing this for the past 20 years under the pact, signed on December 31, 1988, which prohibits any kind of attack on their nuclear facilities.

The first list was exchanged on January 1, 1992.