Agnipurana 331.6

331.6

gurudvayānta āpīḍaḥ pratyāpīḍo gaṇādikaḥ /
prathamasya viparyāse mañjarī lavaṇī kramāt //

Āpīḍa ends in two gurus; Pratyāpīḍa begins with a gaṇa; / by reversal of the first, it is Mañjarī and Lavaṇī in order;