Here is what his mates said after his achievement.
"It is a great effort for him and a great honour for all of us. It is a great moment for Indian cricket and I am happy that I have seen most of these 12,000 runs being scored by him from the dressing room," Kumble said while congratulating Tendulkar on his historic feat.
Ganguly, who will retire from the game after the four-match Test series against Australia, was fulsome on his praise of Tendulkar with whom he shared the dressing room for the last 13 years."It is a fantastic achievement, kudos to him. He is a phenomenal player. It has been a great honour to share dressing room with him for the last 13 years," Ganguly said.
Dravid hailed Tendulkar as a "great champion" who truly deserved the feat."It is a phenomenal achievement. He is a great champion and his achievement is truly well deserved," Dravid said.