N'Diaye headed home to add to an earlier own goal and put Wolves in a seemingly comfortable position midway through the first half, but the visitors battled back and levelled with the last kick of the game.
Afterwards, N'Diaye said: "We are disappointed as we wanted to win the game. We started the game well, but when we went 2-0 up we started to drop back and that wasn't good for us.
"After they scored their first goal they were able to put pressure on us, and in my opinion we didn't give the performance that we wanted to in the second half, and that's why they went away with a draw.
"Norwich are a good team - they play football the right way, but when you're 2-0 up at home you have to win the game.
"It's frustrating that they scored in the last seconds, but we know we are not the perfect team so we will try to learn from this."
N'Diaye's first-half header was his second goal in two games at Molineux, capping the midfielder's longest sustained run in the team since his arrival at the club in the summer.
Of his current form, the Senegalese international added: "I'm pleased that I've scored two in three games, but you're only really happy if your goal counts towards a win.
"I'm playing a lot at the moment and that's good for me. I came here to play - nobody is happy to sit on the bench. All season I've tried to work hard and do my best, and everyone knows the gaffer knows what's best for the team, so everyone has that same attitude.
"But now I've played five games in a row and that's good for me and for my confidence. But I'm not the kind of guy who thinks I can relax now - I know I've got to keep working hard to stay in the team."
Despite the obvious frustration at being pegged back by Norwich, N'Diaye was philosophical about Wolves' healthy position in the league and the tough test posed by Saturday's televised trip to Fulham.
"A point is still a point - obviously we wanted to win but we're still in a good position in the league," he continued. "We have 13 more games now and we will work hard for what we want to achieve.
"We know we have to go to Fulham on Saturday with big ambitions, because we know where we want to be at the end of the season.
"They are one of the best teams in the league, but these big games are where you can show what you can do as a player. We have to go there and not be afraid and show why we are top of the league."
