जिंदगी में शादी के अलावा ट्रेन में RAC ही एक ऐसी स्थिति है,जिसमें दो अजनबी साथ निभाने को मजबूर होते है। - Junaid

More than enough.

---

If single wdm3a is enough for train like Rajdhani with LHB rake then why ICF rake KK gets twin wdm3a ?

---

Its due to the Terrain, also KK runs with Diesel Engine for approx 20+ hours..so twin is always advisable as if something goes wrong with one second once can come to rescue.. Also one more reason in my opinion is that it runs on single track also..

---