dear Mr. Vinay,
not agree with you, detachment of banker at lonavala stations hardly take 5 minutes. whereas trains like Mumbai - Chennai Express, Udyan Express, Mumbai - Chennai Mail, Dadar - Chennai Express, LTT - Coimbatore Express, Mumbai - Nagarcoil Express, Hussain Sagar Express, Tirupati Express and Kanyakumari Express all are hauled by a diesel engine. Except Udyan Express, Tirupati Express, Coimbatore Express and Hussain Sagar Express all other trains get WAP - 4 only at Renigunta Junction, where the train reaches allmost after running 24 hrs.