@Mandhra This is Aphids infestation, To manage this damage spray Econeem 2 ml/ltr and exponus - 34ml/Acre, Please find the link below of the following products https://www.bighaat.com/products/econeem-azadirachtin-3000-ppm-0-3-ec-biopesticide_https://www.bighaat.com/products/confidor-super .For more information you can also call us at 1800 3000 2434 or text us on our whatsapp number 8050797979.

Look like Aphips, Spray with TL turbo 50ml/200litres of water