Nse up 0 23 in early trade
It seems like you're referring to the Indian stock market!
"Nifty up 0.23% in early trade" means that the Nifty 50 index, which is a benchmark index of the National Stock Exchange of India (NSE), has risen by 0.23% in the early part of the trading day.
In other words, if the Nifty 50 index was at a certain level, say 12,000, it would have risen to 12,024 (12,000 + 0.23% of 12,000) in the early trade.