The recommended salt intake is < 5 gms per day.  But Indians take >10 gms per day & exact salt intake is under reported when compared with 24hr Urinary Sodium excretion. Increased salt intake causes more water retention exerting extra Pressure for Heart and Kidney perfusion.  

The subsequent failures in Glomerular filtration Rate and Na+ excretion cause Hypertension. And the later is responsible for 57% of stroke deaths and 24% of all cardiac deaths.  In addition to that, salt decreases the Nitrous oxide production at vessel endothelium affecting the arterial elasticity and stiffness adversely. 

Decreasing salt intake of 1.75gm in daily intake would contribute to reduction of 4.2/2.1 mmHg (SBP/DBP).

By 2020, International Society of Hypertension Practice Guidelines recommended population based efforts to reduce salt intake at cooking , on table and also to avoid High salt containing foods like pickles, pappads , Namkeen chips, Chutney etc. Also, Weight Reduction of 5.1Kg can drastically bring down SBP of 4.3mmHg and DBP of 3.6mmHg DBP. 

Possible Prevention measures includes measuring BP every 5 years, dietary corrections ( WHO plan globally to reduce salt intake by 2025), Abstinence from Alcohol and cigarette  and Weight control.