To come into a sudden, unexpected good fortune.
अचानक, अप्रत्याशित अच्छे भाग्य में आना।
English Usage: They windfall into a large inheritance after their uncle passed away.
Hindi Usage: उनको अपने चाचा की मृत्यु के बाद एक बड़ा विरासत मिला।
apratyāśit bhāgya, apratyashit bhagya, apratyasht bhagya, apratyasheet bhagya, apratyashit bhaagya