Pennar, or Penner, two rivers of southern India, distinguished as North and South. The native name is Pinakini. Both rise near the hill of Nandidrug in Mysore state, and flow eastward into the Bay of Bengal. The northern is the more important and has a total length of 355 m., that of the southern being 245 m. This latter bears the alternative name of the Ponniar. The Pennar (northern) river canal system comprises more than 30 m. of canals, irrigating 155,500 acres.