ANCHAL AAPPEES (Post Office)
Colonel John Monroe introduced the Anchal (Postal) system in Thiruvithamkur in 1811. Originally restricted to carrying royal implements, government letters and flowers as offering to Shri Padmanabha temple at Thiruvananthapuram, the facility was later extended to all for a fee of one chakram ( coin of Thiruvithamkur) for any article to any distance. The Post master was universally known as "Anchal Pillai" and was a man of considerable influence. The postal runners by royal decree were allowed to occupy the centre of the road and any obstruction was deemed to be a serious offence.

AMMACHI PLAVU( Mother of all Jack fruit Trees)
Famous in the local folk lore as the tree which sheltered King Marthanda Varma while on the run. A huge hole in it helped the king hide in its hold.

WEIGHTS AND MEASURES
Thiruvithamkur had distinctive weights and measures. Some of them are given below

FOR WEIGHING MEASURES
Gold 3 nellida = 1 kunni
4 kunni = 1 panamida
21 panamida = 1 pawan ( equivalent to 8 grams of gold)

Rice 2 ozhukku = 1 uri
2 uri = 1 nazhi
4 nazhi = 1 edangazhi
10 edangazhi = 1 para

Distances 8 nellida = 1 angulam