दशैकादश चैवैते सङ्कीर्णाः समुदाहृताः । न ह्येषामुपयोगोऽस्ति सप्तरूपे ध्रुवासु च ॥ २५॥
Those Tālas which have ten or eleven Kalās are called Saṅkīrṇa (irregular). These, however, are not used in the seven types of Dhruvās (song forms).
english translation