The Russian government is likely to take up the matter of cancellation of Sistema Shyam Teleservices Ltd's (SSTL) licence by the Supreme Court with Indian leaders during the upcoming Brics summit to be held in Delhi on March 29. "All matters of this kind are usually discussed at the highest level. I believe that they (Russian and Indian leaders) will be discussing this issue on an informal basis," said Arkady Dvorkovich, an adviser to the Russian President, in Moscow.