THIRUVANANTHAPURAM: Six express trains will be regulated at the Aluva railway station from February 5 to 27 for engineering work between Kalamassery and Aluva. A release said the Bilaspur-Tirunelveli Express will be regulated at Aluva for 85 minutes on Wednesdays and the Bikaner-Kochuveli, the Veravel-Thiruvanantha puram and the Gandhidham- Nagercoil expresses for 30 minutes on Thursdays, Friday and Saturdays, respectively. The Okha-Ernakulam Express will be regulated for 30 minutes and the Guruvayur-Chennai Express at Angamali/Aluva for 15 minutes on all days except Mondays.