<Li> Deccan Queen / Flying Rani Express / Panchvati Express </Li> <Li> Gomti Express / Taj Express / Shan - e-Punjab Express / Indrayani Express / Indore Express / Indore--Jodhpur Intercity Express </Li> <Li> Tamralipta Express / Lal Bagh Express / Brindavan Express / Karnavati Express </Li> <Li> Pinakini Express / Ratnachal Express / Satavahana Express / Kovai Express / Pragati Express / Vaigai Express / Pallavan Express </Li>

What is difference between mail and express trains