grindstone meaning in Hindi

His field being the law , his first duty , then , was to be successful in it . So for some years after he started his law practice in Bombay , he kept his nose to the grindstone , intent only on building up a practice and a reputation which would give him the right to take part in public affairs . Badruddin decided , boldly , to start at the top , that is , to start his practice in what was called ' the Original side ' of the Bombay High Court .
इसलिए बंबई में वकालत शुरू करने के कुछ वर्ष बाद तक उन्होंने एकाग्रता से अपने काम पर ध्यान दिया-इस दृढ़ संकल्प के साथ कि वह अपनी वकालत जमा कर इतनी ख़्याति प्राप्त करें कि उन्हें सार्वजनिक मामलों में भाग लेनेका अधिकार प्राप्त हो सके .

noun.

a revolving stone shaped like a disk; used to grind or sharpen or polish edge tools