Mizuho Financial Group Inc. said Wednesday it will buy Avendus Capital Private Ltd., a major investment bank in India, to strengthen operations in the South Asian country with high growth potential.In the transaction expected to conclude in July 2026, the major Japanese financial group's unit Mizuho Securities Co. will pay up to 81 billion yen ($524 million) to acquire over 60 percent of the shares in Avendus from its largest shareholders and make it a consolidated subsidiary, according to Mizuho Financial."It will be a significant strength for us to have a partner that knows India" at a time when the number of Japanese companies seeking advice about expanding business there is increasing, said Mizuho Financial President Masahiro Kihara at a press conference in Tokyo.Avendus, established …