Is Estoppel a good defence to 'archaic ', Atam Prakash vs State of Haryana, ; , right of Pre emption which is a 'weak right ', Bishen Singh vs Khazan Singh; , , and can be defeated by any 'legitimate ' method Radha Kishan vs Sridhar, ; Barring High Court of Rajasthan and erstwhile, Mewar State Jethmal vs Sajanumal, [1947] Mewar Law Reports, 36, most of the other high courts, namely, Allahabad, Naunihal Singh vs Ram Ratan, , Oudh, Ram Rathi vs Mr. Dhiraji, [1947] Oudh 81, Ajmer 352 Gopinath vs R.S. Nand Kishore, AIR 1952 Ajmer 26, Bhopal, Abdul Karim vs Babu Lal, AIR 1953 Bhopal, and Lahore Kanshi Ram Sharma & Anr.