It is believed that in ancient times there were many small churches in the forest regions including Nilakkal and Thulappally as a result by the visit of St. Thomas in 52 AD. Places like Thulappally and Plappally in the forest were named after these churches. The head church of all these churches were known as Thalappally and which in course of time became "Thulappally".
Geography
Basically Thulappally is classified as Malanad or high land with an altitude ranging from above mean sea level. The place is located near to the sacred forest regions of Sabarimala with comparatively less population. River Pamba flows westwards through the northern part of Thulappally.
Vaikundapuram Sri Krishna Swami Temple, a Hindu shrine located on the banks of Pamba River with Lord Krishna as the principal deity is the main temple at Thulappally. The annual festival is hosted from 10 May.
Hidhaythul Islam Juma Masjid, a Muslim Masjid located at Aithalappally on the way to Moolakkayam which is 1KM away from Thulappally Town.
Economy
Majority of people depends upon the agricultural sector. Rubber is being cultivated widely and many rubber plantations are widespread in the populated regions. The hilly terrains here are suitable for its cultivation. Moreover, pepper, banana etc., are also cultivated. Many people works in abroad as well as in urban areas. The 'Malanadu development society' under Kanjirappally diocese has a rural electrification system named "Malanadu Mycro Hydel Power Project" at Thulappally. This small scale power project generates electricity from water bodies and supplies to about 250 families, shops and pilgrim centers.
Climate
A tropical climate is normally experienced here. The place receives significant rainfalls during the monsoon, with a short dry season. The average annual temperature rises to 27.3 °C. The months of June, July and August receives sufficient amount of rainfall, while the temperature falls to 21.7 °C in the month of January. Humidity normally increases in the months of March and April. The presence of thick forests helps to develop local thundershowers.
There are well connected state highways and rural roads which makes transportation more flexible. Neriyamangalam - Pamba state highway, one among the important roads to Sabarimala passes through Thulappally. Both state-owned and privately operated buses provides service to Thulappally from places like Kottayam, Erumely and Kanjirappally. At times of Sabarimala pilgrimage, thousands of vehicles passes through the place. In the past, the regions including Thulappally was not so easily accessible due to the absence of quality roads. But the transportation facilities improved when the Kanamala- Elavumkal highway was inaugurated.
Airports
is at distance of from here and Thiruvananthapuram international airport about. A heliport is situated in Perunad which operates at times of Sabarimala pilgrimage.
