After spraying fertilizer within few days tip of the plant leaves are looking like burning & turning to yellow colour

What have you sprayed

If you have sprayed any selective or non selective herbicide then you can't recover it You can spray rapigro 25 ml per 14 lit

Nenavath Devilal Fertilizer Burn Please check this link for more details and preventive measures.

Take water spray it's take sume days

Spray the crop with Zinc

Spreay haldi powder 3 gm per 1 ltr of water

It is because using unwashed spray tank after previous spraying May be previous spray was non selective herbicide

Monochrotophos and acephate powder Tharani

Nenavath Devilal Then spray rapigro 25ml and nutrifast 10g per 14l