The experiment will be carried out at horticultural research farm of BTC CARS, Bilaspur during Rabi 2019-20. A field experiment will be laid in randomized block design (RBD) with six different bio-pesticide treatments and an untreated control, replicated three times. The result revealed that the Acetamiprid @ 20 SP (0.004%) was proved to be most effective treatment against chilli thrips, as it was recorded least population (10.18 thrips/plant) whereas, Karanj (Pongamia pinnata) @ 5% Leaf extract (0.25%) was observed the least effective treatment as compared to other treatments, as it was recorded maximum thrips population (17.06 thrips/plant)