Meaning of (दुगुना करना) duguna karna in english
As noun :
double Ex:  Texas once featured 52 double bassists,
Suggested : twice as large, heavy, strong, etc twofold in size, amount, number, extent, etc
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(दुगुना करना) duguna karna
can be used as noun.. No of characters: 11 including consonants matras.
Transliteration :
dugunaa karanaa