why hyper tension is ricky ?

Hi Darshana, not clear on your question. Did you mean "tricky"?

If hypertension is not managed effectively or undetected, it results in the first presentation being a complication : eg stroke/ ischemic heart disease/ nephropathy/ retinopathy etc.

Here is a link to one of the articles https://www.patientsengage.com/conditions/beware-hidden-salt-foods

But you can find more at https://www.patientsengage.com/condition/hypertension