Clarification on Live Data & 09:15 Open

Hi @Tradehull_Imran,
I am building a fully automated breakout strategy using Dhan-Tradehull and need some clarification on live data handling for production use.

  1. How can we fetch true 1-second live data for:
    Index (e.g., NIFTY)
    Its specific CE and PE (strike already known)
    Is there any streaming method available, or is get_ltp_data() the fastest possible live snapshot?
  2. For accurate and deterministic gap calculation, what is the correct way to fetch:
    Previous day official close
    Current day 09:15 official open price
    Should we always rely on 1-minute historical candle data for this?
  3. When using get_ltp_data():
    Is the LTP coming directly from exchange real-time feed?
    Does it include exchange timestamp internally?
    Or is it a polled snapshot without timestamp?
    I want to ensure my open, gap, and breakout logic is structurally correct for automated trading.
    Thanks in advance.