H Hariharan (23rd minute), S Silverstalin (25th), G Saravanakumar (50th) and S Niranjan Sai Ganesh (57th) were the goal-scorer for Tamil Nadu, while Manipur Hockey could only score once in the 55th minute through Ibungo Singh Konjengbam.
With this win, Tamil Nadu topped their Pool D with a tally of 7 points.
In another match, Sports Authority of Gujarat - Hockey Academy thrashed Hockey Gujarat 16-1 to finish second in Pool D with six points.
In a Pool E match, Bengaluru Hockey Association continued their invincible run as they beat Hockey Puducherry 5-2 to seal their place in the quarterfinal. They topped their Pool with three wins out of three matches.
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Ramesh (23rd, 30th) and N Honnur Swamy (40th, 57th) scored twice each for Bengaluru Hockey Association while Rama Shankar (58th) also scored a goal. The two goals for Hockey Puducherry were scored by S Muthukrishnan (26th, 60th).
In a well-contested match, Goans Hockey led 3-0 after 26 minutes. Hockey Bihar pulled two goals back in two minutes which were also separated by a Goans Hockey goal in the 43rd minute, making the scores 4-2 in the latter's favour.
Hockey Bihar threatened in the latter stages of the match and scored a third goal in the 50th minute to make it a nervy last 10 minutes.
Goals for Goans Hockey were scored by Naresh Patil (7th, 13th), Suraj Gaonkar (26th) and Ayyaz Khan (43rd) while Vinay Xess (42nd), Samu Hassa (43rd) and Shambhu Kumar (50th) scored for Hockey Bihar.
Abhishek (20th, 28th, 39th) and Pramod (22nd, 38th, 53rd) scored hat-tricks for Sports Authority of India while seven different players scored a goal each for the victors, namely Pravakar Minz (8th), captain Harshal Sharma (24th), Ravi (29th), Manish Sharma (40th), P Surya Prakash (43rd), B N Sridhar (50th) and Vikram (60th).