Another way:
First, take MRT from Bt Batok(Towards Jurong East)
Then, transfer to Pasir Ris train
Alight at Outram Park.
Transfer to NEL and go Hougang.
If u like Mrt, this is the way u shud go. P.S. Don't go via
Woodlands, it's a much longer route...
Total jouney to Hougang ard 1hr