Finance Minister Arun Jaitley today said that his Ministry has not received any formal communication as yet from the Swiss Authorities about details black money held by Indians in Swiss banks. He was responding to media reports that details of the account holders are being shared with the Indian government.Talking to the media in New Delhi, Mr Jaitley said, the Ministry is writing today to the Swiss Authorities so that sharing of information could be expedited and cooperation between Indian and Switzerland can bear fruitful results.