Question

(iv) When did TBM Rachna complete the tunnelling under the Hooghly River?
(a) 21" June, 2017
(b) May 2018
(c) September 2019
(d) 23 May 2017​

Answer 1

Explanation:

21 June 2017 is the answer

Answer 2

Answer :

21 June 2017.

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@Mahor2111