Punjab Government letter No. 387-R(S.), dated the 17th June, 1931, and No.147-R., dated the 8th January, 1934 Punjab Government letter No.3372 R., dated 6th September, 1938. Quite apart from the kam-o-besh rule, however, every assignment of the land revenue of a particular area, whether the assignment is of a fixed amount or not, is subject to reduction on account of suspensions and remissions of land revenue on account of calamities of the season. It is presumed that association with particular villages is accepted by the jagirdars with the full knowledge that the revenue of these villages may not at a time be collected in full. Special jagirs are however exempt from liability to reduction as the result of remissions under the sliding scale system of assessment.