[Oyk]

Whether it's Han, Wu or Tang they are all of Chinese origin
Why are you so shy of admitting your root is CHINESE?
If the one who claimed you're a CECA then you're actually a Chup Cheng.
Your grandfather is pure Chinese, your mother a Hans and your father from South India
Aren't you a Chup Cheng?

Chap Cheng。十种。

I guess you are not local so you don't understand. 

Intermarriage between Malay and Han= Peranakan
Intermarriage between any one of India's races and Han= Peranakan 

Go check Wikipedia about Peranakan if in doubt 

Next, intermarriage between any European race and any Asian race = Eurasian.

We don't call Peranakan and Eurasian chap cheng. 

We only call intermarriage between Hokkien, Cantonese, Teochew, Hainanese and any Han from any Chinese region "chap cheng"