Sir what is the deasese and recommendations

Hi! It looks like Queimadura Solar Abiótica If you click on the blue hyperlink that takes you to Plantix Library where everyone can find details on this disease and control measures. Thank you for your interests in Plantix Community!

due to nutrient defficiency like phosphorus or potassium defficiency

Hello Praveen bhai It look like Blossom End Rot in order to control spray calcium but not excessive

Brown Rot disease, please click on blue link to get more informations about this disese and control measures

sorry  it called la pourriture molle du poivron

thanks 👍

Hello it is like the Bacterial soft rot 

please spreying in barrix control