I bought this chid from a local nursery. They lost the ID. The plant however doesn't look like a strap-leaf vanda but more like thick terete vanda with short physique. Sorry if I couldn't describe it any better.
Anyway, I thought the pattern and markings look very close to Vanda Rothschildiana
see here. Maybe a hybrid with Arachnis but the I have checked with RHS and hybrid between said Vanda and Arachnis is only Aranda Pauline Seah which is a cross with Arachnis Maggie Oei. I wonder if anyone have seen the Aranda and help me confirm the ID.