There is [no insertion of a “sphoṭana”] when a stop of the “ṭ”-series is followed by a stop of the “c”-series. However, here there is a prolongation of time [needed to pronounce the cluster], and that [prolongation] is called “karṣaṇa” [i. e. ʻdraggingʼ]. (p. 303) - Deshpande (1997)