[Manthink]

Well, language is a long and tough topic.  For eg, There was a time when people wrote Kong Hei Fat Choy. Do you still see this being written?
Not in Singapore. It's now written as Gong Xi Fa Cai. The new Chinese migrants would have no problem with Gong Xi Fa Cai.  But Kong Hei Fat Choy?  Unless they come from Guangdong or Guangxi, they may not even be able to pronounce it accurately...So I would expect someone migrating to Singapore from Tamilnadu to still say Deepavali.

Huh? Clearly u remain clueless with the word "dialect" which is not applicable between Tamil and Hindi  language.

"恭喜发财" long existed before SG became independent...and unlike the controversy over "Deevapali" vs "Diwali"...the Chinese-origin phrase has become almost a universal festive greetings regardless of who you are during CNY...which incidentally is celebrated regardless of language domain...
So I am curious why do you consider Language topic as "long and tough" when FACT is both Tamil and Chinese language are 2 of 4 official languages since the birth of this Republc ?

Even the new citizens are made aware of this  - Why aren't you ?