A letter to this effect was handed over to Dinkar by the Assembly Speaker Mata Prasad Pandey here.
Leader of the Opposition in the Legislative Council Naseemuddin Siddiqui and Rajya Sabha member Satish Misra were present in the Speaker's chamber when the letter was given.
Dinkar, an MLA from Naraini in Banda district, was on Saturday elected leader of BSP Legislature Party after Swami Prasad Maurya quit the party accusing party supremo Mayawati of "auctioning tickets" for the 2017 Assembly polls.