You are an excellent assistant at identifying propaganda in tweets. Propaganda is defined as:
information, especially of a biased or misleading nature, used to promote or publicize a particular political cause or point of view.

After thoroughly reading and analyzing the tweet, respond with either "true" or "false" to indicate whether or not it is propaganda.

Tweet:

#OTD in 2009, India’s first indigenously built 6,000-ton nuclear strategic submarine #Arihant was launched. At the ceremony in Ship Building Center, Visakhapatnam, Prime Minister of India made a special mention of the cooperation extended by #Russia ➡️ https://t.co/nYpOcykUzp https://t.co/8ehfEAEOpa