No	Winner	Margin	Target	Overs	Opposition	Ground	Match Date
1	Australia	1 run	151	20	v New Zealand	Sydney	15 Feb 09
2	South Africa	1 run	129	20	v New Zealand	Lord’s	09 Jun 09
3	England	1 run	129	13	v South Africa	Johannesburg	13 Nov 09
4	New Zealand	1 run	134	20	v Pakistan	Bridgetown	08 May 10
5	South Africa	1 run	121	20	v West Indies	North Sound	20 May 10
6	Bangladesh	1 run	147	20	v Ireland	Belfast	20 Jul 12
7	New Zealand	1 run	168	20	v India	Chennai	11 Sep 12
8	India	1 run	153	19.5	v South Africa	Colombo (RPS)	02 Oct 12
9	India	1 run	147	20	v Bangladesh	Bengaluru	23 Mar 16
10	West Indies	1 run	246	20	v India	Lauderhill	27 Aug 16
11	Afghanistan	1 run	146	20	v Bangladesh	Dehradun	07 Jun 18
12	Kenya	1 run	146	20	v Uganda	Kampala	22 May 19
13	Denmark	1 run	118	20	v Finland	Brondby	13 Jul 19
14	Ireland	1 run	187	20	v Scotland	Dublin (Malahide)	20 Sep 19
15	South Africa	1 run	178	20	v England	KuGumpo City	12 Feb 20
16	South Africa	1 run	168	20	v West Indies	St George’s	29 Jun 21
17	Italy	1 run	118	20	v Germany	Almeria	21 Oct 21
18	Kenya	1 run	162	20	v Uganda	Kigali	17 Nov 21
19	England	1 run	172	20	v West Indies	Bridgetown	23 Jan 22
20	Austria	1 run	134	20	v Sweden	Krefeld	11 Jun 22
21	Zimbabwe	1 run	131	20	v Pakistan	Perth	27 Oct 22
22	Canada	1 run	192	20	v Oman	Al Amerat	16 Nov 22
23	Rwanda	1 run	133	15	v Tanzania	Rwanda	16 Dec 22
24	Malta	1 run	166	20	v Gibraltar	Gibraltar	07 May 23
25	Uganda	1 run	126	20	v Kenya	Nairobi (Gym)	21 Jun 23
26	Qatar	1 run	157	20	v Kuwait	Doha	18 Sep 23
27	Bahrain	1 run	124	20	v Oman	Doha	19 Sep 23
28	Ireland	1 run	151	20	v Netherlands	The Hague	19 May 24
29	South Africa	1 run	116	20	v Nepal	Kingstown	14 Jun 24
30	Spain	1 run	180	20	v Czech Rep.	Port Soif	22 Aug 24
31	Malaysia	1 run	183	20	v Singapore	Bangi	03 Sep 24
32	Hong Kong	1 run	189	20	v Qatar	Mong Kok	13 Apr 25
33	Qatar	1 run	102	20	v Saudi Arabia	Doha	18 Jul 25
34	Nepal	1 run	141	20	v U.A.E.	Al Amerat	12 Oct 25
35	Vanuatu	1 run	103	20	v Indonesia	Sano	16 May 26
36	Ireland	1 run	155	20	v India	Belfast	28 Jun 26

It also provides the third occasion of Ireland winning a T20I by one run in the history of T20 Internationals

No	Winner	Margin	Target	Overs	Opposition	Ground	Match Date
1	Ireland	1 run	187	20	v Scotland	Dublin (Malahide)	20 Sep 19
2	Ireland	1 run	151	20	v Netherlands	The Hague	19 May 24
3	Ireland	1 run	155	20	v India	Belfast	28 Jun 26

India has lost three T20Is by one run margin in the history of T20Is. All such occasions are tabulated below

No	Winner	Margin	Target	Overs	Opposition	Ground	Match Date
1	New Zealand	1 run	168	20	v India	Chennai	11 Sep 12
2	West Indies	1 run	246	20	v India	Lauderhill	27 Aug 16
3	Ireland	1 run	155	20	v India	Belfast	28 Jun 26