(i) Ranji refused to leave the pool after a long fight. The other kid decided to battle to beat Ranji again and scare him away.
(ii) No, the fight wasn't going on. None of them took the fighting initiative. Then the other kid said that if Ranji dared to return to the pool, they would continue the battle the next day.

When Ranji reached his face, he bruised and wounded his legs and arms. He discovered it hard to explain how all over his body he received those cuts and scratches.

(i) When Ranji saw his adversary in the bazaar, he wanted to throw his enemy with the empty bottle, but he didn't. Then he believed the other way around turning his head and ignored the kid.
(ii) In his adversary's eyes, he looks angrily and scornfully straight.

Ranji feels tired and weak. He knows that if he has a second fight, he'll beat him. But he thinks he'll lose his claim to the pool forever if he doesn't go to take up the challenge. He decides to lose a fight better than losing his respect. So he's returning to the pool.