Coin A is a Jodhpur quarter anna i.n.o. George VI/Umaid Singh, VS 2001 (AD 1944), KM #145
https://www.zeno.ru/showphoto.php?photo=266096
Coin B is a Nawanagar dokdo, Shri Jamji, frozen date AH (9)78, KM#2. These were made over a long period; Krause estimate 1570-1850 AD.
https://www.zeno.ru/showphoto.php?photo=255654
Coin D looks like an adli of the Sultans of Dehli, Mu'izz al-din Kauqubad (AH 686-689 = AD 1287-1290), undated, GG D187, accounting for different striking positions on the flan.
https://www.zeno.ru/showphoto.php?photo=123680
Coin C looks like a coin of the Dehli Sultanate to me, but I'm not finding it in Zeno. It's the most readable of the four, so hopefully another member will be able to identify it for you.