Just two days after my arrival in Lahore, I was hurtling along the Lahore-Islamabad motorway at 5 am with my friend Rasheeda. Our destination was Bhera, the ancestral town of all the Sahnis, or rather the Khukrain, which includes nine castes: Sahni, Sethi, Anand, Suri, Kohli, Bhasin, Chaddha, Sabharwal and Chandhok.