What's wrong with chillies' leaf tips?

Hi Umar Sabtain as per your images it seems due to the attack of sucking Insect pests like Chilli Thrips Go for the application of Dimethoate to stop its further infestation. For more details please click the above link.

Dear Umar Sabtain as I feel plants are at primary stage so when you place at field first go for soil test. By this which fertiliser your land requires go for, your plants will be perfect, Jazak_Allah

But sir plants are sown in green house under control conditions Shahzaib Kashan Bhutta

Naveed Ajmal Khan Thank you sir

Great. But check temperature in balanced way according to your area to get good growth. I think you understood it now. If any problem, you are most welcome with your proper query again please.

Umar Sabtain Good

Suresh Gollar thank you sir

You are always welcome and we are happy to assist you Umar Sabtain.