Sheeghra Darshan / VIP darshan Dress Code

Does anyone know that for sheeghra darshan can I just go with the usual jeans and T shirt or Dhoti is must ? I am going with my 65 years old mother and I dont want her to wait in line but I am not getting a clear details on dress code , I dont plan to go into the Garbha Griha or It will be too early for Bhashma arti , I am planning to reach there around 10:30 AM from Indore