Solutions of Einstein's equation for a perfect fluid with geodesic world lines for the metric $d{s}^2={\left(d{x}^0\right)}^2-a\left(x^0\right)\lambda (x^1,x^2,x^3) {\left(d{x}^1\right)}^2-\beta \left(x^0\right)\mu (x^1,x^2,x^3){\left(d{x}^2\right)}^2-r\left(x^0\right) \nu (x^2,x^3){\left(d{x}^3\right)}^2$ have been sought by Raychaudhuri and Maity [Phys. Rev. D 18, 3595 (1978)]. This note shows that the authors in the above-mentioned paper missed out certain solutions. These solutions are homogeneous in space.

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