I will visit Goa in November last week. To return back to Durgapur, I am planning to come to NDLS by TVC Rajdhani and then proceed to DGR by Sealdah Rajdhani. Because I want to enjoy travel in both Rajdhanis as well as see Konkan Railway scenary.How is this plan as a train enthusiast? There is a gap of about 4 hrs in NDLS for changeover- I hope that's not risky, is it?.