Bani and Pushkar are definitely really good friends. But I wouldn't agree with you that Pushkar knows Bani more than Jai. Bani has always shared her thoughts, fears and insecurities with Jai. Even if she doesn't utter a word, Jai absolutely understands her every mood, every look and every unspoken thought. The same is the other way round, the way Bani knows Jai, no one has ever come close to knowing him that well.
As friends Pushkar and Bani definitely are the best... đ