First of all I did not mention about Chennai to Bangalore in my any of the statements. I only mentioned Mumbai-Bangalore,Chennai and Hyderabad. So for your knowledge trains coming from Mumbai to Chennai go via Guntakal and not Bangalore. What will you say about trains in UP section which get late by 5-7 hours. I say priority is to Double and Electrify Delhi-Guwahati which includes UP section which is neglected from years in Railway development during UPA rule when most of their railway ministers like Lallu from Bihar,Mamata Banerjee from WB, they thought only about adding trains but never thought of Facilities to Passengers, Amenities in trains and never ever thought of doubling lines in UP and Bihar. Doubling should be the first priority and Electrification next. Itarsi to Allahabad route will also get fully electrified by 2018. I know about electrification In Kerala,Tamil Nadu and Karnataka because I live in...
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Tiruppur from past 20 years and it is electrified. For me the railways should electrify these routes
1.Mumbai-Delhi via Ahmedabad,Abu Road,Ajmer,Jaipur.
2 Delhi to Guwahati (all the routes )
3.Mumbai to Mysore via Bangalore
4.Chennai to Hyderabad.
5.Bangalore to Hyderabad (All routes)
6.Howrah to Guwahati.
7.All the existing routes which are under electrification process and all the routes for which tenders are out.
I think Electrification on main routes where premium trains like Shatabdi,Rajdhani,Duronto run should be electrified.
Konkan Railways is exception.
You should also know that Indian Railways have stopped the production of WAP 4 CLASS locos and only WAP 5,7 will be produced now. So there should be no argument on Diesel and Electric because all the departments of NDA government is working fine for electrification Indian Railway is seeking funds for more power supply from Piyush Goyal. Their plan is to electrify most of the Rail Routes. And that situation of delays would be solved by solving basic issues and yes it will happen soon.