Serial No Name of Reserve Area in Km2 Year of Formation District 1 Eravikulam National Park 97.00 1978 Idukki 2 Silent Valley National Park 89.52 1984 Palakkad 3 Pampadum Shola National Park 1.318 2003 Idukki 4 Mathikettan Shola National Park 12. 817 2003 Idukki 5 Anamudi Shola National Park 7.5 2003 Idukki