Upzalr or hsa

Dear Learned Lawyers, I have a concern that there is a acquired property (urban) of Mr. X who died without will leaving 2 sons and 2 daughters. According to Hindu Succession Act, Section 8, the four children have equal right of succession in the property as it is acquired, urban and death is intestate. However, the 2 sons are trying to sell the said property under agricultural land saying that then the succession is governed by UPZALR and daughters will have no succession. The sisters contacted a local lawyer who suggested to file an injunction. (a) Can an urban property be sold as agricultural land? (b) If we file an injunction then approximately in what duration it will be granted? Is there any minimum notice period served by the court. (The daughters have already served a legal notice twice.) Thnaks.