Here are some other scattered information about Naag.

Naagaa is a tribe of seafarers and was spread all over the world. Naagaapattinam, Naagpur, Bhaagalpur (Bhogavatee Nagaree), Takshshilaa (the city of Takshak Naag), Naag Dweep (Andamaan-Nikobaar), Naagaasaakee (Japan), Aztecs (Aasteek, Mexico). Naag-Veethi is sea-lanes in north hemisphere.

Naag within a country were in charge of transport. They were from Ahi-griha (Ahi means "snake" and Grih means "house" - so Ahi Grih means "House of Snakes") Agharia (Aagaraa in UP), Ahi-chchhatra were their towns.

Persons in charge of ports were Vaanar. Ports are still called Bandar. or Bandargaah. Bandara - Sri Bhagawan in Borneo, Porbandar (Gujaraat), Boree Bandar (Mumbai), Bandar Abbaas - a Port city in Eeraan which is the main base of Eeraanian navy and it is a strategic location. Bandar Abbaas has always been a port, and as such its various names have all addressed this function. The most common name over time (Gameroon) has traditionally been said to derive from Persian "gu mruk", custom house (from Late Greek Kommerkion, from Latin commercium, "commerce"), but is now speculated to be from Persian Kamroon, shrimp (which in Portuguese iscamarao, similar to the former Portuguese name) also read this Descendants of Gameronians.

In the year 630 CE, Mahaaraajaa Darbaar, Raajaa of Gameron, was defeated in battle and escaped to Ceylon, and he was later blown off course by a storm to the remote shores of Kuala Sungai Qilah, Kedah (now Malaysia). The inhabitants of Kedah found him to be a valiant and intelligent person, and they made him the king of Kedah. In the year 634 CE, a new kingdom was formed in Kedah consisting of Persian royalty and native Malaya of Hindu faith, the capital was Langkaasuk. (see Kedah Sultanate and Early history of Kedah)

Naag is one of winds in body which causes twisting.
Naga means snake also.
There were 10 major Naag tribes in India described in Puraan.

Why Does a Snake Shed His Skin?
Snakes shed their skin on a periodic basis, while other creatures may simply shed skin cells or hair, a snake actually rids itself of its skin in one continuous piece, a procedure that can be likened to removing a sock. This shedding is not without purpose. Snakes shed their skin to allow for growth, as well as to remove parasites along with their old skin. Snakes shed their skin by brushing against something hard and rough surface, like a rock, and creating a rip in their skin. Usually, this rip is initiated in the nose and mouth area. A snake continues to work on this rip until it can shed its skin completely. Snakes shed their skin rather frequently. Many snakes shed more than once per year with some species shedding on a bi-monthly basis. Snakes shed when they grow too big for their skin, comparable to the way humans outgrow clothing. Humans shed skin cells too. However, instead of losing skin cells as one continuous and noticeable piece, humans lose numerous, tiny skin cells each day. No one really notices this shedding, as human skin cells are small enough to escape observation.

Interestingly, snakes shed their old skin when their new skin has aleady formed beneath it. The new skin has the same patterns and colors as the old skin that is ready for shedding. When the old skin is shed, however, it doesn’t look exactly the same as its replacement, but it takes on a nearly transparent appearance.

Snakeskin shedding is not always without incident. It is possible for things to go wrong for the snake. For example, if snakes shed when the humidity in the air is too low, the skin can be too dry to shed. Portions of the old skin that remain attached can harbor parasites or provide a breeding ground for diseases. Furthermore, if the tip of the tail fails to shed correctly, it can cut off the snake’s blood flow over time and actually cause the end portion of the tail to come off.

It is possible to identify a snake by the skin it leaves behind. To do so, an individual would simply have to collect as much of the snakeskin as possible and take it to a science museum, a zoo, a science center, or an individual with in-depth knowledge of snakes. To preserve the snakeskin while in transit, it is best to place it in a protective container.