Germany has a "principled position" on death penalty and it does not amount to interference in any internal matters, he said when asked whether seeking clemency for Bhullar is an interference in the internal matter of India.
"Germany has a principled position that it is opposing death penalty because we don't believe it serves the cause of justice," he told reporters here.
He was asked about reports that German President Joachim Gauck and Foreign Minister Guido Westerwelle have written to their Indian counterparts seeking clemency for Bhullar.
The Supreme Court had last month dismissed Bhullar's plea that his death sentence be commuted to life imprisonment.
Bhullar was convicted and awarded death penalty for triggering a bomb blast here in September 1993, killing nine people and injuring 25 others, including then Youth Congress president M S Bitta.
He was arrested after being deported from Germany in 1995, a country that endorses abolition of death penalty worldwide.