DUA, C. J. :- This is a plaintiffs' appeal directed against the judgment and decree of a Subordinate Judge Ist Class, Delhi, dismissing the plaintiffs' suit for the recovery of Rs. 15,900/- comprising of principal and interest claimed on the basis of an equitable mortgage of a house situated in Kucha Chelan, Delhi, effected by Deep Chand deceased, father of defendants Nos. 2 and 3, and husband of defendant No. 1 and by Inder Dev Upadhyaya, defendant No. 4. The suit was dismissed on the finding that the mortgages by deposit of title-deeds have not been proved, the documents Exhibits P. Y. and P. 13 being inadmissible in evidence for want of registration.

2. The only question canvassed before us on appeal in the circumstances lies within a very narrow compass and is confined to the question whether the mortgages in question were effected by means of documents requiring registration.

3. According to the allegations in the plaint, on 6-8-1952, Shri I. D. Upadhyaya and Shri Deep Chand, father of Vishal Chand Jain and Ramesh Chander (defendants Nos. 2 and 3) and husband of Smt. Kamla Wati (defendant No. 1) borrowed Rs. 10,000/- from M/s Kakoo Shah Uttam Chand, plaintiff No. 1, and