Two bills were introduced before Chairman M Venkaiah Naidu adjourned the House.
Naidu, however said the bill was just being introduced.
Tribal Affairs Minister Jual Oram introduced 'The Constitution (Scheduled Tribes) Order (Third Amendment) Bill, 2019'.
Several Congress MPs too entered the Well.
Law makers from BSP and SP, the two parties which have entered into an alliance for the next Lok Sabha polls, were heard raising the issue of deaths in Uttar Pradesh and Uttarakhand due to consumption of illicit liquor.
The Chairman made appeals to the protesting members to return to their seats and not display posters.
But his appeals went unheeded following which Naidu adjourned the House till 2 pm.
Before adjourning the House, Naidu said he has received several notices under Rule 267, but none have been accepted.
Rule 267 provide for setting aside the business of the day to discuss the issue being raised.