Visit Arulmigu Sri Raja Kaliamman Temple (Gl Temple) at Johor Bahru.?

I would like to visit Arulmigu Sri Raja Kaliamman Temple (Gl Temple) at Johor Bahru. What day and time is it open to visitors/ tourists? is there an entrance fee? I will be coming from Singapore. What is the fastest and most convenient way to get there through public transport? Thanks!