Gokhru also called as Tribulus terrestris. There are majorly two types of gokhru viz., Gokhru (Chota) and Gokhru (Bada). Though their properties are same but usually, Gokhru (chota) can be used in urinary and kidney disorders and Gokhru (bada) is used for aphrodisiac purpose.
Other applications reported are:
For frequent urination hence for kidney disorders
As anti-aging or in skin disorders
PCOS
Reduce blood sugar, hypertension etc
 
Safety Information: 
Pregnant or lactating women, diabetics and people with known medical conditions and/or taking drugs should consult with a licensed physician prior to taking dietary supplements. Keep out of reach of children