@P2prada -
As usual you are back to naysaying about the LCA.
Firstly, the LCA Mk-1 has better specs than the Jaguar - better T/W ratio with a single engine than the two engines of Jaguar combined, more wing area (better wing loading), - read the specs below. A tailless delta format which is proven to be good for high AoA and low-altitutde maneuvering, Better avionics and EW capability and definitely lower RCS. It can carry way more hardpoints (8 vs 5) than the Jaguar and can deliver ordnance with much more accuracy. It has longer range (3000km vs 980 km) than the Jaguar, faster (1.8 Mach vs 1.6 Mach) and requires shorter runway for take off and landing - hence can be used from more forward bases than the Jaguar. It has a higher service ceiling and longer ferry range.
So, in a nutshell, LCA is better than Jaguar ANY way you look at it. Not surprising at all - LCA is a 4.5 gen aircraft ad Jaguar is a 3rd gen aircraft, modified for near 4th gen performances. IAF can use the LCA for EVERY purpose that the Jaguar can serve. The LCA can be modified to carry tactical Nuclear weapons too.
As for your assertion that GoI did not place roadblocks to LCA development - well, they DID do the nuclear tests, which led to sanctions on India, which put off LCA development by 5-6 years. Also, GoI did not released any major R&D grant till 2000 - 14 years after LCA design was started. If those are not "roadblocks" - I am not sure what are.
Specs of Tejas ...
Wing area: 38.4 m² (413 ft²)
Empty weight: 6,560 kg (14,460 lb)
Loaded weight: 10,500 kg (23,100 lb)
Max takeoff weight: 13,300 kg (29,540 lb)
Powerplant: 1 × General Electric F404-GE-IN20 turbofan
Dry thrust: 53.9 kN (11,250 lbf)
Thrust with afterburner: 85 kN (19,000 lbf)
Internal fuel capacity: 2,458 kg
External fuel capacity: 2x 1,200 litre drop tank at inboard, 1x 725 litre drop tank under fuselage
Performance
Maximum speed: Mach 1.8[86] (2,138 km/h) at high altitude (15,000 m)
Range: 3,000 km (1,840 mi) without refueling
Service ceiling: 15,250 m (50,000 ft (engine re-igniter safely capable))
Wing loading: 221.4 kg/m² (45.35 lb/ft²)
Thrust/weight: 1.07[5]
g-limits: +9/−3.5 g
LITENING targeting pod[89][90][91]
Avionics
Hybrid MMR radar (Israeli EL/M-2032 back end processor with Indian inputs)
SEPECAT Jaguar Specs ...
Wing area: 24.2 m² (220 ft²)
Aspect ratio: 3.12:1
Empty weight: 7,000 kg (15,432 lb)
Loaded weight: 10,954 kg (24,149 lb)
Max takeoff weight: 15,700 kg (34,612 lb)
Powerplant: 2 × Rolls-Royce/Turbomeca Adour Mk 102 turbofans
Dry thrust: 22.75 kN (5,115 lbf) each
Thrust with afterburner: 32.5 kN (7,305 lbf) each
Performance
Maximum speed: Mach 1.6 (1,699 km/h, 917 knots, 1,056 mph) at 11,000 m (36,000 ft)
Combat radius: 908 km (490 nmi, 564 mi) (lo-lo-lo, external fuel)
Ferry range: 3,524 km (1,902 nmi, 2,190 mi)
Service ceiling: 14,000 m[134] (45,900 ft)
Climb to 9,145 m (30,000 ft): 1 min 30 sec
But we digress - the original discussion was for Mirage 2000 upgrades - remember?
Mirages are great birds, but 30 year old airframes being "upgraded" for $47 million is INSANE!