The two best concepts of trains for me are the samapark kranti trains and garib rath trains both flagged by lalu prasad yadav..
share ur views that which concept(type)of trains are the best according to you..and u may also add a concept of your choice which isnt present as of now...like i want ir to run all sleeper bogies trains with one or two chair cars to accomodate waitlist passengers and the waitlist should be made on the basis of the capicity of the chair cars present in that train..