A decision of this Court in Sukhdev Singh & Ors. v. Bhagatram Sardar Singh Raghuvanshi and anr. (') For the decision of the point at issue, however, it will not make any difference. No Regulation clearly provides the effect of crossing the maximum limit of family income. As per R•gulation 4 tenements in class (i) or in cfass (ii) can be let out at such subsidised rents as Government may by special orders fix or at the economic rent calculated in accordance with the formula B decided by Government from time to time. Different subsidised rents. reducing or enhancing the amount of subsidy can be fixed by the Government from time to time. But one thing is clear, even in absense of any specific Regulation in that regard, that on the crossing of the maximum wage limit, the industrial worker shall not be entitled to continue in the tenement let out to him on the subsidised rent fixed on the basis of the income limit as per Regulation 7. Out of the consec quences mentioned hereinafter, either one or the other may follow. He may cease to be a tenant unless and until the tenement is allotted to him on the basis of the increased wage limit or he may be liable to pay the economic rent or full economic rent on the crossing of the wage limit. Even assuming that this result does not automaticaJ!y follow, on the general principles of law in absence of a clear Regulation being there, the tenancy could be terminated by one months' notice D as per clause (17) of the agreement. The terms cf the agreement and the undertaking are also ambiguous and not clear enough to entitle the Board to clain1 enhanced rent from an industrial worker on his. cro;sing the particular wage -limit. The terms are capable of an interpretation which may be favourable either to the Board or to the industrial worker. The High Court has interpreted them in favour of the fonner. Although we are not prepared to say that the interpretation' put by the E High Court is necessarily wrong, because of the ambiguity of the language, as we shall presently show, we do not propose to rest our judgment on such interpretation of the terms only. Clause (2) of the agreement is concerned with increase in the monthly rent and other charges as the Board may consider fit or expedient to impose "on acconnt of any increftSe in such rates, taxes cesses or other service charges or an account of any additions and/or alterations to or any conF veniences provided at the said premises or the building in which t'1e same are situate." The said clause does not'cover a ca'se of incrase of rent by rednction of snbsidy on the ground of increase in the wage limit. Clause (18-A) provides that the tenancy shall cease as soon as the tenant ceases to be an industrial worker. But then clanse (18-B) requires him to ¢ve certain information including a detailed information about his total monthly family income. The purpose of G this requirement obvionsly is to find out whether a particular industrial worker .has crossed the wage limit, if so, when. Yet, as a follow up action, no clear clause is to be fonnd in the agreement providing for rednction of subsidy and increase of rent on the crossing of a particular wage limit.