The augmentation with one First AC cum AC 2-tier coach, in T.No.12671/12672 Chennai Central – Mettupalayam – Chennai Central Nilgiri Expresses will be extended on temporary basis for one more month from 29.5.2012 to 27.6.2012 ex. Chennai Central and from 30.5.2012 to 28.6.2012 ex. Mettupalayam.