The OIC is a 57-member grouping of Muslim majority nations, including Pakistan. The body has usually been supportive of Pakistan and often sided with Islamabad in its disputes with India
Malaysia's Mahathir Mohamad urges Iran, Malaysia, Turkey and Qatar to be self-reliant against threats.
The news of Khan's non-participation was announced by the Malaysian Prime Minister's Office in a statement on Tuesday
Swaraj has been invited as a 'guest of honour' at the inaugural session of the foreign ministers' conclave in Abu Dhabi on March 1-2
The invitation to India by the OIC comes at a time when India has been mounting diplomatic offensive against Pakistan to isolate it internationally following the Pulwama terror attack