A trendline is supporting Nifty near today's closing level.

As you can see in the chart, a long term trend line is offering support to the today's low, which is not very far from closing.

This line is important for reversal or a short covering bounce up, tomorrow we have a weekly options expiry too. The developments can be interesting.

Traders may use this line to create, hold and book positions tomorrow or for next few days.

12100 is indeed a major support for tomorrow.
Trade in either direction keeping this in mind.

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