If you want the smoky flavour of the tandoor then after the Gobi is grilled cover it in a metal cover with burning piece of charcoal.
This is known as the Dhungar technique. Take a piece of charcoal and place it on the gas burner. Rotate it on the flame until it is red hot. Place it in the centre of the dish in a small iron bowl or even a peeled onion and pour a little ghee on it. Arrange the Grilled dish around it and cover it for a couple of minutes. The smoky aroma will waft in the air and give your dish the required tandoori punch.
To make thick yoghurt faster… If you do not have enough time for the curd to drain naturally then gently squeeze the curd and you will get a thick paste.