Vivek Express: ऊंचे नीचे रास्ते और मंज़िल तेरी दूर.

Presently if Teesta Torsha is being speeded up, it will help huge gamut of people in reaching NBengal in lesser time.
Just wanted to know how do people commute from these stations to Delhi and South !
Cant a Delhi bound SF be introduced from kolkata and run via NH,BDC, AZ,NFK,BFP,KIUL,PNBE with SF timings ?
What about South Bound ones ?

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