Recent pic of pallavi in white, there are many theories
1) Holi celebrations
2) flashback as raghav put color on her so she may remember some incident
3) She may disclose Or Raghav may learn the truth of her widowhood, may be thats the dhamaka they wer saying about..
There is also pic of raghav in traditional wear walking in anger may be he will know the truth🤔, is it too early ? Because i am sure Raghav will respect her more & he may think differently towards her if truth comes out