Intra day is for different from positional trading. Intra day is more based on market sentiment. Go along with the flow but be calculative with technical analysis.
Market sentiment means look at the global market sentiment-FII activity -Indian market-Advance and decline-Identify the sector-Look at the percentage of change-look at turn over- identify the stock-. Decide entry and exit level-Define the risk and decide the quantity- and do the trading with discipline and knowledge.