The relevant part of that provision runs as follows: " 'Debt ' means any pecuniary liability, whether payable presently or in future, or under a decree or order of civil or revenue court or otherwise, or whether ascertained or to be ascertained, which (a) in the case of a displaced person who has left or been displaced from his place of residence in any area now forming part of West Pakistan, was incurred before he came to reside in any area, now forming part of India; (b)in the case of a displaced person who, before and after the 15th day of August, 1947, has been residing in any area now forming part of India, was incurred before the said date on the security of any immovable property situate in the territories now forming part of West Pakistan : Provided that where any such liability was incurred on the security of immovable properties situate both in India and in West Pakistan, the liability shall be so apportioned between the said properties that the liability in relation to each of the said properties bears the same proportion to the total amount of the debts as the value of each of the properties as at the date of the transaction bears to the total value of the properties furnished as security, and the liability, for the purposes of this clause, shall be the liability which is relatable to the property in West Pakistan; (c)is due to a displaced person from any other person (whether a displaced person or not) ordinarily residing in the territories to which this Act extends; x x x x The contention on behalf of the appellant is that the liability under a mortgage is not a pecuniary liability and therefore section 2(6) will not apply to a mortgage debt.