Sarna was speaking at an event held yesterday under the aegis of Zoroastrian All Party Parliamentary Group, in association with the Zoroastrian Trust Funds of Europe (ZTFE), at the British Parliament.
It was chaired by Cobra Beer chief Lord Karan Bilimoria, the first Zoroastrian Parsi to sit in the House of Lords.
Sarna was the special guest speaker alongside Dr David Landsman, head of Tata in the UK, and Sir Mominic Cadbury, former chairman of Cadbury and Schweppes, on the topic 'Faith based ethics in Business: The Cadbury and The Tata Way'.
"The Zoarastrians or Parsis, as they came to be known had been absorbed into India's patchwork quilt of religions and ethnicities," Sarna said.
He noted that maintaining their strong sense of identity and culture, Parsis had contributed to India richly over the centuries through personalities like Dadabhai Naoroji, Pherozeshah Mehta, Dr Homi Bhaba, Field Marshall Sam Maneckshaw and maestro Zubin Mehta, who had all played a great role in various fields in modern Indian history.