And then Shri Nathji applies his favourite hair oil – Jabakusum– which he had been using since a very young age, and about which he would always say:“Kisee ne kahaa thhaa ye brain ko bhee taakat detaa hai!“Someone had once said that this hair oil gives nourishment to the brain as well!”Priya Nath was sceptical about such claims and allowed only little amounts to be used by Shri Nathji on his hair. Albeit, it was an exhilarating sight seeing Shri Nathji applying the hair oil vigorously to his head and then massaging it with his hand and fingers, and later saying:“Dimaag ko tthandak to laataa hai! “It brings a coolness to the brain!”The hair oil was difficult to find in the markets, and people had to go to odd places in old Delhi to find a bottle, each time Shri Nathji needed one.