Uttar Pradesh athlete Patel clocked 41:29.85 to better statemate Vijay Gehlot's 12-year-old national record of 42:58.00. Three other athletes, who finished behind Satish, also bettered Gehlot's old record.
Haryana under-16 javelin thrower Neeraj Chopra made a giant improvement to the national best in his age-group with an effort of 68.46m. Teammate Mandeep Kumar (66.24m) made it 1-2 for Haryana. UP lad Dharmender Kumar Patel held the previous mark of 62.14m since 2007.
In the youth boys' 10,000m walk, Kuldeep successfully defended his title but clocked only 44:06.28, slower than his meet and national record of 42:58.1 which he timed at Ranchi.
In the same age-group, Maharashtra's Mandeep Goyat improved the meet record in 800m race as he pipped Delhi boy Lalit Mathur to the post with 1:53:02 to 1:53:03.
Other successful title defender was Kerala girl R Anu in 400m hurdles. Her state-mate Jessy Joseph took the youth girls 800m race but missed Tintu Luka's meet mark by a whisker.
Team Kerala led the points table at the end of second day with 186 points, closely followed by defending champions Haryana in 177 points.