The United Federation of Bank Unions, the umbrella organisation of nine bank unions, met and congratulated the staff for observing the two-day strike
The rupee also depreciated by 19 paise intra-day against the dollar at 65.13, which too had a negative influence.
The dollar weakened against some currencies overseas after US President Donald Trump sacked Secretary of State Rex Tillerson.
Gitanjali Gems stock slumped 5 per cent to hit its fresh 52-week low of Rs 17.45 on BSE.
Forex dealers said sustained month-end demand for American dollars from importers, foreign fund outflows, and the dollar's gains against other global currencies weighed on the rupee
Sensex jumped 322.65 points to close at 34,142.15
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