Mumbai, Jan. 31 -- The securities fraud proceedings against Adani Group chair Gautam Adani and his nephew Sagar Adani-over allegations of paying bribes to unnamed Indian government officials and misleading American investors-have broken a year-long political stalemate, making way for a potentially long legal battle in a US court.

Attorneys representing the Adanis and the US Securities and Exchange Commission (SEC) have reached an agreement allowing the regulator to serve summons and a copy of the complaint on the Adanis through their US-based legal counsel, according to court filings made on Friday.

The two sides have also agreed to an extended legal schedule, giving them more than six months to file motions and oppositions in a stagger...