TC reported train doors at car 3610 wereslow in closing. Staff(SBW) checked and confirmed car 3610 'A4' doorswere slow in closing. Fault recurred at subseque nt stations. ~~~~~ TC reported train doors at car 3610 were     Check the above mention fault due to #3610-A4(LHS)door roller faulty,replaced done.Security check and door static test ok.Door open/closed several times ok. Done by Saini/Asruddin. 13/03/22