The Widows of Malabar Hill, apa A Murder on Malabar Hill, is, per SYKM, the much-awarded (Agatha, Lefty, Macavity, and Mary Higgins Clark) first title in the short four-book Perveen Mistry historical series by Sujata Massey. I’ve read and really liked most of the titles in Massey’s longer contemporary Rei Shimura series, and I’ve also read and really enjoyed the first two books in the Mistry series and am looking forward to reading the next two when I get a chance. In any case, Widows has dropped to $2.99 at Kindle and Kobo US, and £2.17 at Kindle UK. It has been on sale in the past for a bit less ($1.99/£1.47) but these are still not bad prices for a very enjoyable historical mystery.
Now $1.99 at Kindle and Kobo US, and £1.38 at Kindle UK. The links in the OP are still good.
The Bombay Prince is the third and most recent (2021) in Massey’s Perveen Mistry series. It’s on sale at Kindle UK for £2.34, and in the US for $2.99
Kindle US: https://www.amazon.com/dp/B08HKTRDFW
Kobo US: https://www.kobo.com/us/en/ebook/the-bombay-prince
Kindle UK: https://www.amazon.co.uk/dp/B08HKTRDFW