While Shah made his maiden entry to the Rajya Sabha, Irani was reelected to the upper House in the polls held yesterday.
The prime minister also congratulated Shah for completing three years as the BJP chief and noted that the saffron party's base had expanded during this period.
"Congratulations to Shri @AmitShah on completing 3 successful years as @BJP4India President," he said in another tweet.
Modi said that under Shah's leadership, the BJP has expanded its base in several areas and diligently worked towards nation building.
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