तदा

Monier-Williams · tadā
tadā ind. (Pāṇ. 5-3, 15 and 19 ff.) at that time, then, in that case (often used redundantly, esp. after tatas or purā or before atha MBh. &c ‖ correlative of yád [AV. xi, 4, 4], yatra [ChUp.vi, 8, 1], yadā [Mn. MBh. &c.], yadi ṅīt. Vet. ḥit., yarhi [BhP. i, 18, 6], yatas, 'since', [MBh. xiii, 2231], cêd [Śak. v (vḷ.) Kathās. xi Śrut.])

विस्तृत संस्कृत–हिन्दी · adverb
तत् काले।; "रामः अत्र आगतः तदा त्वं कुत्र आसीत्।"