Yes it is Ratchathewi. I found this little blurb:
Ratchathewi BTS Station is just a few minutes’ walk to Pratunam – the epicentre of wholesale clothing and wacky street fashion. If the thoughts of ladyboys with tremendous stage talent pique your curiosity, head over to Calypso Cabaret at the station’s very doorstep. Elsewhere, there is also the lively Coco Walk (exit 4), which is comprised of rows of fun Thai-style pubs with live music, cheap drinks and live sports on the weekend. For those wanting to access the popular Pantip Plaza (electronics) as wells as Platinum Fashion Mall and Pratunam Market, then Ratchathewi BTS is your closest option. However, these malls are still around 5 or 10 minutes walk, or around 2 minutes by taxi. Please be advised that this area can become very busy during rush hour, and is particularly prone to long traffic jams.