ITC chart still looks in bearish mode..buying will not be a good idea. It will test the support levels at 159 & around 140-136.
Previously, it had bounced upside from 159 level on 12th May (1d chart) it will most probably test that level before going upside.
If it moves further down below 159 level then it will test support range of 140-135. Till then keep an observation..
Also, once it breaks 20 EMA upside, one can think of buying as it moved upward on 20th May (1D chart) but it will face resistance at 50 ema and 200 ema above like it faced on 20th April at 50 ema & 200 ema on 3rd July & 11th Aug.
On a safer side for a long term, it would be better to wait till it breaks 200 ema and buying above 206.
*This view is based on my technical analysis and is for educational purpose only. Please feel free to discuss if I'm wrong somewhere.