nifty support registance

//version=5
indicator("stock and index 5min 15 min 30min", overlay=true)

// Define market open and close times
market_open_time = timestamp(year, month, dayofmonth, 9,40)
market_end_time = timestamp(year, month, dayofmonth, 3, 30)

// Identify the first 5-minute candle of the day
is_first_five_min_candle = (time >= market_open_time and time < market_open_time + 2000000)

// Variables to store the levels
var float first_upper_level =na
var float first_lower_level = na
var line first_upper_line = na
var line first_lower_line = na

// Set levels from the first 5-minute candle
if is_first_five_min_candle
first_upper_level := close * 1.0010
first_lower_level := close * 0.9999
// Upper and lower level lines (solid style)
first_upper_line := line.new(x1=bar_index, y1=first_upper_level, x2=bar_index + 20, y2=first_upper_level, width=2, color=color.rgb(44, 231, 6))
first_lower_line := line.new(x1=bar_index, y1=first_lower_level, x2=bar_index + 20, y2=first_lower_level, width=2, color=color.rgb(238, 13, 13))

// Extend the first upper and lower level lines until 3:25 PM
if time < market_end_time
line.set_x2(first_upper_line, bar_index)
line.set_x2(first_lower_line, bar_index)