Section 13(1)(c) in The Consumer Protection Act, 1986
(c)where the complaint alleges a defect in the goods which cannot be determined without proper analysis or test of the goods, the District Forum shall obtain a sample of the goods from the complainant, seal it and authenticate it in the manner prescribed and refer the sample so sealed to the appropriate laboratory along with a direction that such laboratory make an analysis or test, whichever may be necessary, with a view to finding out whether such goods suffer from any defect alleged in the complaint or from any other defect and to report its findings thereon to the District Forum within a period of forty-five days of the receipt of the reference or within such extended period as may be granted by the District Forum;