Parampara

The largest Vadakalai Matham is Ahobilam Matham has three Guru Paramparas,

1. a Samashrayana Parampara, 
2. a Kalakshepa Parampara, and 
3. a Sanyasa Parampara. 

That's because its founder Adivan Sadagopan:

1. one guru who gave him Samashrayanam (initiation into Pancharatra), 
2. one guru who gave him Kalakshepam (knowledge), and 
3. one guru (Lord Narasimha) who gave him Sanyasa