Milestones are given in a Word Document which is achieved by CLW since the year 1947 to 2015 and it is attached with this BLOG.
From the Milestone record you can see the following important events:
1980 1st October First Rajdhani Electric Loco WAP-1 commissioned.
1992 3rd August 1st 5000 hp High Adhesion WAG – 7 Electric Locomotive “SHANTIDAN” christened by Mother Teresa, Missionaries of Charity.
1994 23rd January WAP-1 Electric Loco “PRAGATISHEEL” provided with Hitachi Traction Motor.
1994 27th August First 5000 hp WAP-4 Passenger Locomotive “ASHOK” flagged off.
1996 14TH September First Modular WAG-7 Loco KARAMVIR Flagged
1996 27th December First 3 phase 6000 hp WAG-9 Locomotive (CKD/SKD) flagged off from CLW.
1998 14th November WAG-9, the first CLW built indigenous 3 phase state-of-the-art 6000 hp Freight Electric Locomotive “NAVYUG” inaugurated by the Hon’ble Minister for Railways by Shri Nitish Kumar.
2000 24th February The first CLW built 3-phase traction motor type 6 FXA-7059 for WAP-5 locomotive inaugurated.
2000 10th May “NAVKIRAN” the first WAP-7 locomotive rolled out of CLW.
2000 17th May “NAVODIT” the first CLW built WAP-5 locomotive rolled out of CLW.
So, 1st 3-Phase Loco came to Indian Railway in the year 1996(WAG-9) and WAG-9 and WAG-7 are of the same time which is seen from the above noted Milestone Records. So NOW in 2015 i.e after 19 years people have realized the importance of 3-Phase Loco. 19 Long years is taken for the 3-Phase Loco to establish it's identity.NOW IR SHOULD WELCOME the 3-Phase Technology(Which is 19 years OLD) and use it in a Large Spectrum in ALL ROUTES of IR in the years to come. WAP-4 emerged in 1994. WAG-9 in 1996, so just a gap of 2 years.
WAG-9 is the OLDEST 3-Phase Variant used in Indian Railways.
Download Link for Milestone of CLW:
CLW Milestones