Dr. Nitin Tanna ne dîku diende bakaya mu tshimenga tshia Lancaster mu 1972. Pakajika kalasa ka muanda mutekete, wakapeta difutu dia muaba muibidi mu tshibilu tshia malu a sianse tshia mu tshimenga tshia Lancaster ne dijinga diende dia kumanya malu a sianse divua dienda divula.