Apart from being a
religious center, Thrikodithanam was also once a center for culture,
arts, erudition and learning. Students used to be taught religious
texts called 'Shastras' - in sections or
Khadikas. Since discussions,
debates, tests and examinations took place with these sections as the
base, the institutions came to be called
Khadika-sthanam. These
flourishing institutions imparted knowledge and skills not only in
language and religious texts but also, in some cases, in warfare and
state-craft.
These higher-grade institutions of learning were open to youth
of the Chola-Pandya-Chera kingdoms. Research on Sanskrit texts and
philosophy, and Vedic studies were the primary functions of a Khadika or
Khadika-sthanam. The syllabus included study of the Shastras and
Upanishads, and study of Tantra and Mantra. These institutions were as
renowned as the famous universities of today. It is believed that, at
any time, between 1000 to 7000 students studied at these institutions.
The most famous of these Khadika-sthanams existed at
Kanchipuram even before 345 AD. Nalgonda inscriptions and inscriptions
at Vellore-Pala, Gudianam and Kasagudi refer to the Khadika-sthanams.
The presence of the famous Mahavishnu temple lent the prefix of respect
Thiru to the Khadika-sthanam here making it Thiru-Khadika-Sthanam. In the works of Nammalvar too there are references to existence of such an institution. Over the centuries, Thiru-Khadika-Sthanam became Thirukkadisthanam and finally Thrikodithanam.
Thrikodithanam
was the capital of a prosperous kingdom called Nanrulainattu (Land of
Farmers). The kingdom covered an area from the north of Odanaadu to
south of the present Kottayam town. The eastern boundary of this kingdom
extended till Thiruvanvandoor. The temples of Thrikodithanam,
Perunnayanallur (Perunna) and Thiruvanvandoor were within this
kingdom.
During
the 14 year reign of Bhaskara Ravi Varma, in 965 AD,
Kothaverma
Marthandam, the crown-prince of Venad, made contributions in cash and
kind for the temple. The period 951 - 1109 AD is referred to as the
period of the kings of Thrikodithanam.
During
the reign of the Chera King Rama Varma Kulashekara (1090-1102 AD),
Kerala was overrun by the mighty Cholas led by Koluthunga-I. The Cholas
burnt down Mahodayapuram (1012 AD), the capital of the Cheras and
destroyed Kollam (Quilon), the capital of Venad. Defeated in
conventional warfare, the famous warrior class of Kerala, the Nairs,
formed Suicide Squads called Chaver, against the invaders. Numerous Kalaris (gymnasia giving training in attack and self-defence) were established, turning Kerala into one large insurgent military camp.
Over a period of time, Rama Varma and his Chavar army forced the
Cholas to withdraw from Kerala to Kottar. Though the Cholas could not
make enduring conquests, they did manage to smash the Chera empire and
turn it into numerous, small independent principalities - one of which
was Nanrulainattu.
This invasion had far reaching effects on the political and
social landscape of Kerala. The Cheras shifted their capital from
Mahodayapuram southwards to Kollam (Venad) and then again to
Thiruvananthapuram. The Nairs, having lost huge numbers of men in
battles and then again in Suicide Squads, turned from a Matrilineal
society to a Matriarchal society. Large Nair households, the Tharavaads, now headed by women, aligned themselves with a new political power center - the patriarchal Aryan Namboothiri Brahmin Illoms.
Without royal patronage, the powers of the temples too
declined. The temples then began to be owned and managed by the
Namboothiri Brahmins. But infighting and break-up of joint families led
to the weakening of Brahmin communities and the Tharavaads. From late
1300 AD to early 1700 AD could be called the Dark Ages for Kerala - the Hindu society had created for itself the most oppressive caste system under the Namboothiris.

Meanwhile the Cheras re-emerged as a power under Ravi Varma
Kulashekara (1299 - 1314), and later under Marthanda Varma (1729-1758)
and Kartika Thirunal Rama Varma (Dharma Raja: 1758-1798).
Nanrulainattu, Odanaadu and Thekkumkur united and organised in to the
Venad state, which later merged with the kingdom of Travancore. After
Marthanda Varma the Conqueror dedicated (Thripppatidanam) his
kingdom to Sri Padmanabha (Vishnu), all ill-managed temples were taken
over by the Kingdom and later on, control was given to the Devaswom
Board. This changed the nature and form of community ownership of the
temples.
The main festival of 10 days duration takes place in the lunar month of Vrishchikam
(Nov-Dec). On the ninth day, Thiruvonam, of this
holy month, the temple flag is hoisted to mark the commencement of
festivities.
The Sreekovil is a well proportioned, two-tired structure built on a circular plan. The base Adhishtana is made of rounded granite stones which rise to a height of about three feet. A granite Pranala
protrudes out of the Northern side of the Adhisthana. The oldest stone
inscriptions in Thrikodithanam temple are found on these base-stones.
In all, there are 13 inscriptions and almost all are in the Vaatezutthu
Tamil script. Beautiful mural paintings which once
adorned this circular wall have been badly damaged. A conical roof rises in two tiers and wooden Dashavataara
(10 incarnations of Vishnu) figures appear to connect the two floors.
The sloping roof is covered neatly with copper tile-plates. Mural paintings on the walls are only about 400 years old.

In front of the Sreekovil is a rectangular platform - the Namaskara Mandapa. This has a wooden ceiling carved with Ashtadikpalakas
(guardians of 8 directions) with Brahma in the middle. Side stones of
the platform are plain, except for elephants and lions carved along the
ridges. On the northern side is an inscription in Malayalam giving
details of its construction.
Facing east is the main idol,
a standing four-armed Lord Vishnu holding the Shanku (shell), Chakra
(discus), Gada (mace) and Padma (lotus bloom). It is sculpted out of an
unusual black stone called
Anjana stone
. During their wanderings, each of the Pandava
princes found a separate idol of Lord Vishnu for personal worship, all except
Sahadeva, the youngest prince. After much effort, when he could still
not find a suitable idol for himself, Sahadeva, in despair, decided to
immolate himself. Just as he was about to leap into a huge flaming pyre,
an idol of Lord Vishnu appeared miraculously. This idol was hence called 'Atbutha Narayana' (Wonderful Vishnu).

A tall, gold-plated flag-mast, rests on a square granite base. The temple pond is located near the Eastern entrance. Between
the pond and the eastern entrance, near a public platform for arts and
discourses, is a strange granite statue. It is a man flat on his back,
held up stiff and straight on a stone pillar about six feet high. Only
his waist rests on the pillar, rest of the body is unsupported. He holds
a Shankhu (shell) in his left hand and wears the holy thread
indicative of the higher castes. At one time the statue wore a crown as
well. According to the legends, the
ruler of Chembakaserry was a renowned Namboothiri Brahmin who
took pride in the prosperity of his own kingdom and Sri Krishna temple (Ambalappuzha temple).
Since temples were then considered keystones to a kingdom's spiritual
and temporal well-being, the King decided to embarrass the rulers of
Nanrulainattu whose capital is Thrikodithanam, by making a deliberate, untimely
visit to the Vishnu Temple.
He arrived at Thrikodithanam after the Sheeveli Pooja(the
last ceremony of the day) and by that time the temple had closed. It is
considered very inauspicious to open a temple after the gods are put to
rest, but still, the King forced an entry by bribing a caretaker.
