By Manoj Kumar NEW DELHI (Reuters) - India may soon relax conditions for cash withdrawals for weddings, a top government official said on Tuesday, the day after the central bank issued rules for such bank transactions widely criticized as unworkable. Prime Minister Narendra Modi's shock announcement on Nov. 8 that he would scrap high-value banknotes, to curb untaxed "black cash" circulating in the economy, came in the middle of India's cherished wedding season. Families, rich and poor, go to huge lengths to celebrate weddings in India.