My friend needs to go to hyderabad next month from haldwani. So where should he go to catch train delhi or lucknow? And which train will be most preferable? He will travel in 2ac or 3ac and will be accompanied by his wife and 3 kids 4, 2 and 1 yr old with some luggage also. Date is not fixed he will go by 20th to 25th September and come back in first week of October. Plz suggest for return journey also.