Vijayanagara Empire Series: 16 If Kerala was under the Vijayanagara Empire, why weren't Telugu Naickers appointed everywhere in Kerala just like Tamil Nadu and Karnataka?

 Yes. Kerala was very much under Vijayanagara Empire since Kumara Kampanna (Son of Bukkaraya of Vira Shaiva Sangama Dynasty) expedition in 14th century.

1.Instead of Telugu Naickers, the Governors of Travancore Kingdom was from the family of Tenkasi Pandiya Kings- Tenkasi Pandiyans had marital alliance with Vijayanagara Tuluva Dynasty.

2.Governors of Northern Kerala were Telugu Naickers before Mysore Kingdom become prominance under Aravidu Dynasty.

Yes. Ravillas were Military Commanders in Vijayanagara Empire in Northern Karnataka; later became Governors of present day Northern Kerala during Achuta Devaraya regime; called back to Roya Vellore after Talikota war.

After Vijayanagara rule, they were given Thirukkottupalli and Ilayarasanendal as Mannariya Polypats by Madurai Naickers for two brothers; Thirukkottuppalli along with the fort of Koviladi was lost to Chanda Shahib and both families settled down at Ilayarasanendal (during British downgraded to Kattukuththagai Zamin) in Tinnevely District. The account is more or less same for Kuruvikulam Pemmasani Kings.

Further read on answers to similar questions:

Mohan N R's answer to Why are Telugu people able to dominate Karnataka and Tamil Nadu politics but not Kerala politics? How is Kerala effective in stopping Telugu grain from getting boiled in Kerala?

Mohan N R's answer to Why was the Vijayanagara Empire so dominated by Telugus? For example, when the rulers appointed governors to Tamil lands, it was all Telugus (Nayaks). Why?