“…This technique is known as double or two phase sampling and was first introduced by Neyman [ This technique is known as chaining. The chain regression estimator was first introduced by Swain [18].Chand [4], Sukhatme and Chand [16], Kiregyera [9] proposed some chain ratio type estimators based on two auxiliary variates. Srivastava and Jhajj [14], Al-Jararha and Ahmed [1], Pradhan [11], Amin and Hanif [2], Singh and Choudhury [12], Kalita et.…”