Japanese plum (Prunus salicina) cultivar called Satluj Purple. 

Origin / Popularity: Very popular in north-western India (Punjab, Himachal) due to its early ripening and good color. 

Scientific Note: It’s a subtropical plum, so it’s suited to climates where chilling requirement is relatively low.

Fruit:

Size: Medium, average around 25–30 g per fruit. 

Shape: Roundish. 

Color: Skin turns deep crimson / purple when ripe.

Flesh: Thick-skinned, yellow-orange, firm.

Taste: Sweet; total soluble solids (TSS) ~ 13–14%, acidity ~ 0.6–0.7%.

Use: Good for fresh eating (table) and processing (e.g. jam).

Ripening: Very early variety — typically ripens in first week of May.

Yield: About 35–40 kg/tree (depending on planting system).