par sanchu if that was the first pooja then shehsha was exposed before everyone and even shiv would be there..she would know this is that naagin sitting with yamini..and then who called the sapera??it has to be shiv to know the truth ...and if she already knows it is shesha then the dialogues after yamini manhandles her does not make sense ..she is still clueless about sheshathis is so confusing...that cave mein pooja scene could be much before all these fantasies take over and may be shiv and shesha are faking it..but yamini convinces shesha and the fantasies start..we know there are 2 failed attempt...hence by the time second pooja is planned shesha is all obsessed...see there has to be a good time gap between the two poojas...now that ritik strangling her in pooja yamini will instigate shesha further telling it was her sister who called the sapera to get her caught and betrayed her ...thus the tiff deepens...after that yamini scene ,shiv may have gone to meet guruji to have some info about the truth or something or yamini may have tricked her again and send her out so that shesha can do her deed...