"But when I saw people coming into the stadium and there were many already so I just didn't want to disappoint them and put my efforts in to score a double for them."
Younis scored 213 in eight-and-a-half hours after his twin centuries in last week's first test in Dubai, which Pakistan won by 221 runs.
Australia's day of humiliation ended appropriately with an early wicket in their first innings just before stumps and were 22 for one in reply to Pakistan's 570-6 declared.
Younis added 236 for the third wicket with Azhar Ali (109) and 181 for the fourth wicket with skipper Misbah-ul-Haq (101). It means Pakistan, who lead the two-match series 1-0, are in an almost unbeatable position as they edge towards their first test series win over Australia since 1994.
Younis is now the third Pakistan batsman to have scored more than 8000 test runs.
"I am not great, like Javed Miandad, Inzamam-ul-Haq," he said. "I want to be remembered as a team man who loves to serve and make his country proud."
Younis' memorable performances have come after he was overlooked for last month's one-day series.
"I can't explain how I have spent that particular week, as my family and friends were all tense," he said. "They were all wondering what I am going to do. They were afraid I might retire or something."
Apart from battling a lifeless pitch suited to a draw, Australia also faced a drama involving Brad Haddin, who hurt a shoulder. AAP
