And yes ! It is a baby female Wagler's Viper, from what I see, it is basically only 1 week old, in perfect health and has a very beautiful 'green' coloration. Well, it poo's last night, and strikes on a house gecko tail which I offered.
It might be cruel to capture this snake, but have you ever imagine in maybe 20 minutes time, it might be eaten by some predators like birds? However, it is in good hands now by a friend of mine (Mr Austin). Any issues on feeding or health, it will be released back into the wild. So far so good.