Location	Lab. sample	Nature of	Depth from	Depth from MSL (cm) (Altitude)	¹⁴ CAge	References	Calendar age
Location	No.	Sample	Surface (cm)	Depth from MSL (cm) (Altitude)	(Year BP ± error)	References	(Cal yr.BP)
Calcutta I	BS 544	F-Peat	600	0	3470 ± 110	[17]	3747 ± 138
Calcutta I	BS545	M-Wood	800	−200	6210 ± 130	[17]	7099 ± 153
Calcutta I	BS521	M-Peat	1210	-610	6650 ± 120	[17]	7536 ± 90
Calcutta II	BS252	Peat	650	−50	2640 ± 150	[18]	2718 ± 203
Calcutta II	BS258	M-Peat	880	−280	6170 ± 140	[18]	7059 ± 154
Calcutta II	BS253	M-Peat	1000	−400	6360 ± 120	[18]	7265 ± 132
Calcutta II	BS259	M-Peat	1120	−520	6390 ± 130	[18]	7295 ± 124
Calcutta II	BS255	M-Peat	1260	−660	7030 ± 150	[18]	7859 ± 137
Dum Dum	TF 443	M-Wood	650	−150	6175 ± 125	[19]	7059 ± 154
Barrackpore	BS 531	F-Peat	610	−10	3030 ± 100	[17]	3208 ± 131
Kolaghat I	BS 520	M-Wood	525	−25	6480 ± 110	[17]	7391 ± 96
Kolaghat I	BS 533	M-Wood	800	−300	6370 ± 120	[17]	7282 ± 121
Kolaghat II	PRL 178	M-Peat	700	−200	6900 ± 70	[20]	7751 ± 69
Namkhana	GrN7137	Clay	175	225	3170 ± 70	[21]	3395 ± 72
Bakkhali	BS 1159	M-Wood	838	−438	4710 ± 120	[20]	5427 ± 136