India and Pakistan exchanged their nuclear units’ lists on 1 January 2013, as it is customary since 20 years. The list which contains the names of nuclear units of two countries, are exchanged between India and Pakistan as a custom and part of an agreement which prevents them from aiming the nuclear installations of each others’ nations.
The exchange of the list of nuclear units has been going on, on 1 January every year since 1992. This is a customary action as a part of Agreement on Prohibition of Attacks against Nuclear Installations and Facilities which was signed in December 1988.
The external affairs ministry of India announced that the two countries exchanged the list of nuclear installations through their diplomatic channels at Islamabad and New Delhi.
Apart from this list, the two nations, as a part of another bilateral agreement signed back in 2008, share the list of each others’ prisoners in the jails of two countries. The bilateral agreement was signed between India and Pakistan in May 2008, according to which a complete list of the citizens of both the countries living in the jails of other country should be exchanged two times every year on 1 January and in July.