w.r.t the OPTSTK data, I see that does not helps at all. Historical evidences support this view for almost every stock. I had a look today at Ashok leyland, reliance, hdil, sbi. all of them have risen since start of april expiry, in nearly the same proportion as nifty. however, their CE/PE ratio is almost the same since it was on 26 / 27 march (april series), even though they had their run throughout these 10 days.
The analysis may be some what relevant for LIX 15 stocks. The problem with stock options is less liquidity therefore low COI on daily basis.
Btw how did you check historic trend for OI ? If you have source for OI historic data can you please share, have been looking for them for a long time.