Open almost any description of Agasthyakoodam — tourism material, guidebooks, and until recently five separate pages on this site — and you will be told it is the second-highest peak in Kerala.
It is not, and it is not close.
The actual ranking
Agasthyakoodam stands at 1,868 m. On the standard list of Kerala peaks with significant topographic prominence, that places it somewhere around thirty-third. More than thirty summits in the state are taller.
The order at the top is not disputed: Anamudi at roughly 2,695 m is the highest peak in India south of the Himalaya, Meesapulimala follows at about 2,647 m, and then a long procession of peaks through the Idukki and Palakkad highlands — Malleeswaran Mudi, Mukurthi, Kumarikkal Mala and many more — all of them well above 1,868 m.
This is not a claim that is marginally out. It is out by about thirty places.
Where the error probably comes from
Errors this durable usually start as a true statement that lost a qualifier. Agasthyakoodam is very plausibly the second-highest peak in some real category — the far south of the state, the Agasthyamala range, the country south of the Palghat Gap — and somewhere in the copying the limiting phrase fell off.
After that it propagates by citation. Tourism pages copy each other, guidebooks copy tourism pages, and a claim that nobody has any particular reason to doubt gets repeated until checking it feels unnecessary. We repeated it ourselves, on five pages, without checking.
What is true instead
Every one of the taller peaks lies in the northern and central highlands. Agasthyakoodam is the dominant summit of the far south, the high point of the Agasthyamala massif, and the mountain that gives the entire Agasthyamala Biosphere Reserve its name.
That biosphere is the real distinction, and it is a better one than a place on a height table. This is among the richest concentrations of endemic plant species anywhere in the Western Ghats — a mountain whose significance is botanical and cultural rather than merely vertical.
It is also, by some distance, the hardest peak in Kerala to get permission to climb, which no amount of elevation would give you.
One more number to hold loosely
The height itself has variants. 1,868 m is the figure that appears most consistently and is the one to use; you will also see 1,890 m quoted in places. The difference is small and does not affect the ranking in the slightest — thirty peaks would still be taller.
Frequently asked questions
How high is Agasthyakoodam?
1,868 m, which is the figure that appears most consistently across sources. You will also see 1,890 m quoted occasionally. The variance is minor and does not change where the mountain ranks.
Is it the second-highest peak in Kerala?
No. On the standard list of Kerala peaks it ranks around thirty-third — more than thirty summits in the state are taller, beginning with Anamudi at about 2,695 m and Meesapulimala at about 2,647 m. The claim is repeated almost universally, including previously on this site, and it is wrong by roughly thirty places.
What is the highest peak in Kerala?
Anamudi, at approximately 2,695 m in the Idukki highlands. It is also the highest peak in India south of the Himalaya.
Why does the wrong claim persist?
Most likely because a true statement lost its qualifier — Agasthyakoodam may well be second-highest within the far south or within its own range — and the shortened version then spread by copying between tourism pages and guidebooks until checking it seemed unnecessary.
So what makes the mountain significant?
It is the dominant summit of southern Kerala and the high point of the Agasthyamala massif, which gives its name to a biosphere reserve holding one of the richest concentrations of endemic plants in the Western Ghats. Its importance is botanical and cultural rather than a matter of elevation.