Completely agree, if the Brits didn't just leave the region to fend for itself and actually did their job properly during the partition, Pakistan and India would probably have been friendly neighbors.
Then who would have bought Supermarine Attackers, Hawker Hunters, Chefitans,
India
L: United Kingdom 333 Vampire FB-5 Fighter aircraft 1950 1950-1959 (333) Incl 281 produced in India; Vampire FB-52 version
62 Vampire T-55 Trainer aircraft 1950 1950-1960 (62) Incl 60 produced in India
(144) Gnat Fighter aircraft 1956 1957-1966 (144) Most produced in India; Gnat Mk-1 version
4 Ford Patrol craft (1958) 1960-1962 (4) Indian designation Abhay
(43) HS-748 Transport aircraft 1959 1961-1973 (43) 4 assembled from kits and 39 produced in India
(2277) Vijayanta Tank 1961 1965-1987 (2277) Developed for production in India; 90 assembled from kits and rest produced in India
6 Leander Frigate 1964 1972-1981 6 Indian designation Nilgiri
43 Gnat Fighter aircraft 1965 1967-1969 (43) Gnat Mk-1 version
2 Ham Minesweeper (1966) 1968-1970 2
50 Gnat Fighter aircraft (1968) 1969-1975 (50) Gnat Mk-1 version
10 HS-748 Transport aircraft 1975 1976-1979 (10)
10 HS-748 Transport aircraft 1978 1979-1984 (10)
85 Jaguar-S FGA aircraft 1979 1981-1987 (85) 'Deep Penetration Strike Aircraft' programme; Jaguar International-IS version; incl 15 Jaguar-IT; incl 45 produced in India; Indian designation Shamsher
1 Magar Landing ship (1979) 1987 1
(31) Jaguar-S FGA aircraft 1982 1988-1992 (31) Jaguar International-IS version; incl 8 Jaguar-IM (Maritime Jaguar); Indian designation Shamsher
1 Magar Landing ship 1985 1997 1
(24) Cymbeline Arty locating radar (1988) 1989-1994 (24) Indian designation MUFAR
15 Jaguar-S FGA aircraft 1993 1995-1999 (15) Jaguar International-IS version; possibly incl 4 Jaguar-IM (Maritime Jaguar); Indian designation Shamsher
17 Jaguar-S FGA aircraft 1999 2004-2005 17 Jaguar-B version; for night-attack role; possibly incl 2 Jaguar-IM (Maritime Jaguar); Indian designation Shamsher
66 Hawk-100 Trainer/combat ac 2004 2007-2012 (66) GBP1.1 b ($2 b) 'Advanced Jet Trainer' (AJT) programme (incl $1.6 b for aircraft); incl 8 assembled and 42 produced in India; Hawk-132 version
20 Jaguar-S FGA aircraft 2006 2007-2009 (20) Jaguar International-IS version; Indian designation Shamsher
57 Hawk-100 Trainer/combat ac 2010 2013 (10) GBP700-735 m ($1.1 b) deal; Hawk-132 version; delivery 2013-2015
(20) Hawk-100 Trainer/combat ac (2013) INR36 b ($685 m) deal; Hawk-132 version; selected but not yet ordered
S: United Kingdom 3 EWP Destroyer (1948) 1950 3 Second-hand; R version; Indian designation Rana
(120) FV-1611 APV (1948) 1950 (120) Second-hand
20 Dove Light transport ac (1949) 1950-1951 (20) For VIP transport
(160) 5.5in Gun Mk-3 Towed gun (1950) 1951-1954 (160) Second-hand
5 Firefly TT-1 Target tow aircraft (1952) 1953 5 Second-hand
3 Hunt Frigate (1952) 1953 3 Second-hand; Hunt-2 version; Indian designation Godavari
10 Sealand Light transport ac 1952 1953 10
17 Vampire NF-10 Fighter aircraft (1952) 1953 17 Vampire NF-54 version
104 Nene Turbojet 1953 1953-1954 (104) For 104 MD-450 Ouragan combat aircraft from France; incl Nene-105 version; from French production line
3 Blackwood Frigate 1954 1958-1959 3 Indian designation Khukri
1 Colony Cruiser 1954 1957 1 Second-hand but modernized before delivery; Indian designation Mysore
2 Ham Minesweeper (1954) 1955 2
3 Leopard/Type-41 Frigate 1954 1958-1960 3 Indian designation Brahmaputra
35 Auster AOP Light aircraft 1955 1955-1956 35 AOP-9 version
120 Centurion-3 Tank (1955) 1956 (120)
(16) Centurion ARV ARV (1955) 1957 (16)
(50) Ferret APV (1955) 1956-1957 (50) For police
(100) Centurion-3 Tank (1956) 1957 (100) Centurion-7 version
(294) Orpheus Turbojet (1956) 1964-1976 (294) For 147 Marut combat aircraft produced in India; Orpheus-703 version
4 Ton Minesweeper (1956) 1956 4
2 Whitby/Type-12 Frigate 1956 1959-1960 2 Indian designation Talwar
6 Canberra B-2 Bomber aircraft 1957 1957-1958 (6) Canberra T-54 trainer version
14 Canberra B-2 Bomber aircraft 1957 1958-1959 (14) Incl 8 Canberra PR-57 reconnaissance and 6 T-4 trainer version
54 Canberra B(I)-8 Bomber aircraft 1957 1957-1959 (54) Canberra B(I)-58 version
12 Canberra B(I)-8 Bomber aircraft 1957 1959 (12) Canberra B(I)-58 version
5 Firefly TT-1 Target tow aircraft (1957) 1958 5 Second-hand
160 Hunter Fighter aircraft 1957 1957-1961 (160) Hunter F-56 version; incl 48 originally produced for UK and sold to India for fast delivery
1 Mod. Majestic Aircraft carrier 1957 1961 1 Originally ordered by UK in WW-2 but cancelled and later completed for India; Indian designation Vikrant
12 Vampire NF-10 Fighter aircraft 1957 1957 12 Second-hand
22 Hunter Fighter aircraft 1958 1959-1961 (22) Hunter T-66 trainer version
(12) Dart Turboprop (1959) 1961 (12) Dart-21 version; for 12 Alizé ASW aircraft from France
14 Sea Hawk FGA-6 Fighter aircraft 1959 1961 14 For use on aircraft carrier
9 Sea Hawk FGA-6 Fighter aircraft 1959 1960 9 Second-hand but modernized before delivery; for use on aircraft carrier
2 Canberra B-2 Bomber aircraft (1960) 1961 (2) Canberra PR-57 reconnaissance version
5 Canberra B(I)-8 Bomber aircraft (1960) 1961 (5) Canberra B(I)-58 version
7 Sea Hawk FGA-6 Fighter aircraft (1962) 1963-1964 (7) Second-hand but modernized before delivery; for use on aircraft carrier
6 Canberra B(I)-8 Bomber aircraft (1964) 1965 6 Second-hand
(5) Green Archer Arty locating radar (1964) 1966 (5)
(300) Sea Cat SAM (1964) 1972-1981 (300) For Leander (Nilgiri) frigates
16 Sea Hawk FGA-6 Fighter aircraft 1964 1965 (16) Second-hand but modernized before delivery; for use on aircraft carrier
48 Hunter Fighter aircraft (1965) 1967 48 Second-hand and Belgian aircraft (incl 12 T-7 trainer version) sold back to producer, modernized to 36 F-56A and 5 T-66D version and sold to India
(5) Canberra B-2 Bomber aircraft (1966) 1967 (5) Second-hand; Canberra T-4 trainer version; modernized before delivery to Canberra T-54
68 Abbot 105mm Self-propelled gun (1968) 1971-1972 (68) VAE Abbot version
10 Canberra B-2 Bomber aircraft (1968) 1970-1971 (10) Second-hand; Canberra B(I)6 version modernized before delivery to Canberra Mk-66
(2) Canberra B-2 Bomber aircraft (1968) 1971 (2) Second-hand; Canberra PR-7 reconnaissance version; modernized before delivery to Canberra PR-67
(12) FV-432 APC (1968) 1969-1971 (12) CP version; for use with Abbot 105mm self-propelled guns
5 Hunter Fighter aircraft (1970) 1972 5 Second-hand but modernized before delivery to Hunter F-56B
6 Sea King HAS-1 ASW helicopter (1970) 1971 6 Sea King Mk-42A version
(600) Sea Cat SAM 1971 1972-1974 (600) Tigercat version; deal incl also 40 launchers
6 Sea King HAS-1 ASW helicopter (1972) 1973-1974 (6) Sea King Mk-42A version
5 BN-2 Maritime MP aircraft (1975) 1976 5
3 Sea King HAS-1 ASW helicopter 1977 1980 (3) Sea King Mk-42A (HAS-2) version
18 Jaguar-S FGA aircraft 1979 1979 18 On loan from UK until 1982-1984 after which 9 bought and 9 returned; Jaguar GR-1 version; incl 2 Jaguar T-1
8 Sea Harrier FRS-1 Fighter aircraft 1979 1983-1984 8 Sea Harrier FRS-51 version; incl 2 Harrier T-60; for use on aircraft carriers
3 BN-2 Maritime MP aircraft (1980) 1980 3
9 BN-2 Maritime MP aircraft (1983) 1983 9
(3) Marec MP aircraft radar (1983) 1986 (3) Marec-2 version; for 3 Do-228MP MP aircraft from FRG
(160) Sea Eagle Anti-ship missile 1983 1986-1988 (160) For Jaguar and Sea Harrier combat aircraft and S-61/SH-3D helicopters
20 Sea King HAS-5 ASW helicopter 1983 1989-1990 (20) Part of $900 m deal; Sea King Mk-42B version
6 Sea King/Commando Helicopter (1984) 1987-1988 (6) Part of $900 m deal; Sea King Mk-42C (Commando Mk-3) version
10 Sea Harrier FRS-1 Fighter aircraft 1985 1989-1991 (10) $230 m deal; Sea Harrier FRS-51 version; incl 1 Harier T-60; for use on aircraft carriers
16 CET AEV 1986 1988-1990 (15) Incl 9 Second-hand, but probably never used
1 Hermes Aircraft carrier 1986 1987 1 Second-hand; $74 m deal; modernized before delivery; Indian designation Viraat
(25) Sea Cat SAM (1986) 1987 (25) Second-hand; for Hermes (Viraat) aircraft carrier
8 Sea Harrier FRS-1 Fighter aircraft 1986 1991-1992 8 $250 m deal; Sea Harrier FRS-51 version; incl 1 Harrier T-60; for use on aircraft carriers
(30) Super Marec MP aircraft radar (1986) 1987-1997 (30) For 30 Do-228MP MP aicraft from FRG
1 Watchman Air search radar (1987) 1987 (1) For surveillance of missile test range
1 Leander Frigate 1995 1995 1 Second-hand; most radars and armament removed before delivery; for use as training ship; Indian designation Krishna
2 Harrier GR-1/AV-8A FGA aircraft 1997 2002 2 Second-hand; $24 m deal; Harrier T-4 version modernized to Harrier T-4(I) before delivery
6 Air refuel system Air refuel system (2012) For 6 A-330 MRTT tanker/transport aircraft from Spain
(350) ASRAAM SRAAM (2012) Selected but contract not yet signed
145 UFH/M-777 155mm Towed gun (2013) $560-700 m deal; ordered via USA; from US production line; selected 2012 but not yet ordered