Why total number of buyers and sellers differ from portfolio and watchlist

This is the order book if I check from portfolio

And this is from watchlist why are they different?

For your holdings, Kite shows the exchange price where the previous closing was higher. So, in your portfolio, you are seeing quote from BSE and on Watchlist, the quote is from NSE, that is why you are seeing differences between Buyers and Sellers in both places as the level of liquidity is different at both exchanges.

For more information you can read this article.