New Delhi, Feb 24 (ANI): Bahujan Samaj Party (BSP) supremo Mayawati on Wednesday said that they have asked the Centre to include a Dalit in the committee formed to probe the Rohit Vemula suicide case. She further said that it is important for them because they want impartial investigation. She also went on alleging that Rashtriya Swayamsevak Sangh (RSS) is responsible for the death of Rohith Vemula.