A field experiment was conducted at Horticulture Research Centre, Pattharchatta, G.B.P.U.A. & T., Pantnagar to determine the impact of pre-harvest fruit bagging on physico-chemical properties of litchi cv. Rose Scented. The experiment included six treatment combinations consisting of bagging materials of two colours viz., white polypropylene bag and pink polypropylene bag, bagged at three dates i.e., 23^rd April, 5^th May and 10^th May each. The obtained results showed that treatment combination of WP+10^th May significantly increased the fruit weight (22.84 g), fruit diameter (3.63 cm) and red colour of skin with anthocyanin content (25.94 mg/100g) of peel. However, T6 (PP+10^th May) showed the largest sized fruits with diameter of 3.70 cm, highest yield (58.48 kg/tree) and dark pink red colour with maximum anthocyanin content of 26.18 mg/100g of peel which resulted in higher yield of superior quality fruits. On the contrary, the highest TSS (19.23° Brix) was recorded in T4 (PP+ 23^rd April).