Bahujan Samaj Party (BSP) chief Mayawati on Monday questioned the Bharatiya Janata Party's commitment to the Constitution, alleging that the ruling party was making little effort to curb the rising incidents of intolerance in the country. Addressing the Rajya Sabha during a discussion commemorating the drafting of the Constitution, Mayawati did not spare the Congress also, saying it was only paying lip service to B R Ambedkar, the architect of the Constitution. Taking a swipe at the government for inviting Congress President Sonia Gandhi to tea to garner the Opposition party's support in passing the crucial Goods and Services Tax (GST) Bill, Mayawati said, "We, the BSP, will support the GST and you don't have to offer us tea; no, not even a glass of water."