en.wikipedia.org/wiki/Arjun_(tank)Arjun is really a world class tank no doubt and it beats T-90 S tankers with ease and is comparable to M1 Abram tanks of US Army.
Below is a Spec Comparison-
Arjun MBT-
Weight 58.5 tonnes (57.6 long tons; 64.5 short tons)
Length 10.638 metres (34 ft 10.8 in)
Width 3.864 metres (12 ft 8.1 in)
Height 2.32 metres (7 ft 7 in)
Crew 4 (commander, gunner, loader and driver)
Primary
armament 120 mm rifled tank gun
LAHAT anti-tank missile
HEAT, APFSDS, HESH Rounds
Secondary
armament HCB 12.7 mm AA MG
Mag 7.62 mm Tk715 coaxial MG
Engine MTU 838 Ka 501 diesel
1,400 hp (1,040 kW)
Power/weight 23.9hp/tonne
Transmission Renk epicyclic train gearbox, 4 fwd + 2 rev gears
Suspension hydropneumatic
Ground clearance 0.45 metres (1 ft 6 in)
Fuel capacity 1,610 litres (350 imp gal; 430 US gal)
Operational
range 450 kilometres (280 mi)
Speed 72 km/h (45 mph) Road
40 km/h (25 mph) Cross country
M1 Abram-
Weight 67.6 short tons (61.3 t; 60.4 long tons)
Length Gun forward: 32.04 ft (9.77 m)
Hull length: 26.02 ft (7.93 m)
Primary
armament 105 mm L52 M68 rifled cannon (M1)
120 mm L44 M256 smoothbore cannon (M1A1, M1A2, M1A2SEP)42 rounds
Secondary
armament 1 x .50-caliber (12.7 mm) M2HB 900 rounds heavy machine gun
2 x 7.62 mm (.308) M240 machine guns (1 pintle-mounted, 1 coaxial)
Engine Honeywell AGT1500C multi-fuel turbine engine
1,500 shp (1,120 kW)
Power/weight 24.5 hp/metric ton
Transmission Allison DDA X-1100-3B
Suspension Torsion bar
Ground clearance 0.48 m (1 ft 7 in) (M1, M1A1)
0.43 m (1 ft 5 in) (M1A2)
Fuel capacity 500 US gallons (1,900 l; 420 imp gal)
Operational
range 300 mi (479.24 km)
With NBC system: 355 mi (567.24 km)
Speed Road: 45 mph (72 km/h)
Off-road: 33 mph (52.8 km/h)
Width 12 ft (3.66 m)
Height 8 ft (2.44 m)
Crew 4 (commander, gunner, loader, driver)