Here are the keys and details from Flora of India:
1 a. Ovary and fruits 2-locular … 1. S. coriacea
b. Ovary and fruits 3-locular ... 2 Other species
S. coriacea
Shrubs, 1.5 - 2 (-3) m high, entirely glabrous. Leaves elliptic, oblong-elliptic (or narrowly so), narrowly oblong to oblong-lanceolate, rounded to cuneate or acute at base, apiculate, acuminate or caudate at apex, (3.5 -) 7 – 11 (- 16) x (1 -) 2 - 3.5 (- 6) cm, chartaceous to thinly coriaceous; lateral nerves 6 - 12 pairs (basal pair prominent, ascending to 50 - 90% way up the lamina); petioles 5 - 15 mm long. Inflorescences axillary, unisexual, the males 0.8 - 2.5 cm long, (5 -) 8 - 16-flowered, the females 1 - 2 cm long, often paired, 1 – 4 (- 8)-flowered) or bisexual with 1- 4 female flowers subtending the male flowers; bracts ovate, triangular or deltoid, 0.7 - 2.5 x 0.5 - 2 mm. Male flowers: sessile or pedicels up to 1.5 mm long; bracteoles absent; sepals 4, ovate to ovate-oblong, 1.5 - 4 x 1 - 2 mm; stamens 4, filaments 3 - 8 mm long; anthers oblong, 1.5 - 2.5 mm long. Female flowers: ca 5 mm across: pedicels ca 2 mm long; bracteoles 4 - 8 (2 - 4 pairs) in subopposite pairs, triangular, ovate-triangular or deltoid, concave, 0.5 - 1.5 x 0.3 - 1.2 mm; sepals 4 - 6, similar to bracts, 1 - 2.5 x 0.7 - 2 mm; ovary ovoid, 1 - 2 x 0.7 - 1.5 mm, glabrous, bilocular; styles 2, 2 - 3 mm long, recurved above. Fruits ovoid, obliquely ellipsoid or subglobose, tipped by remains of style, 7 - 9 x 6 - 8 mm, fleshy.
S. wallichii
Shrubs or small trees, (0.5 -) 1 - 3 m high, entirely glabrous or with puberulous branches. Leaves narrowly elliptic-oblong, lanceolate-elliptic, lanceolate-oblong to lanceolate, acute or cuneate at base, caudate at apex, 7 – 11 (- 14) x (1.5 -) 2 - 4 cm, chartaceous to thinly coriaceous; lateral nerves slender, 8 - 12 per side (the first pair ascending to 50 - 70% way up the lamina); petioles 7 - 15 (- 20) mm long. Inflorescences axillary, bisexual (1 - 2.5 cm long, consisting of 1 - 2 female flowers at the base and 5 or 6 male flowers above them) or unisexual (up to 1.5 cm long, consisting of 1 or 2 female flowers); rachis occasionally sparsely puberulous; bracts triangular to ovate, 1 - 2 x 0.8 - 1.5 mm. Male flowers: sessile or pedicellate (pedicels up to 2 mm long), usually ebracteolate or rarely 2-bracteolate; sepals 4, ovate to ovate-triangular, 3 - 4 x 1.5 - 3 mm; filaments 5 - 8.5 mm long; anthers narrowly oblong, 1.5 - 2 mm long. Female flowers: 7 - 9 mm long; pedicels 5 - 6 mm long; bracteoles 3 or 4 pairs on pedicels, ovate to triangular, 1 - 2 x 0.8 - 1.5 mm; sepals 5 or 6, ovate, triangular or deltoid, 1.5 - 2.5 x 1 - 2 mm; ovary ovoid, ca 2 x 1.5 mm, glabrous; styles 3, 2 - 3.5 mm long. Fruits subglobose or oblong (? when immature), 8 - 10 x 6 -8 mm; fruiting pedicels 6 - 8 mm long.
From the above descriptions, both appear to be quite close. Find out if you can see some difference, which will help in determination of the species of this post.
So best will be to check the inside of the fruit.