Process in selling jointly owned house property

Myself along my mother inherited a house property on death of my father few yrs back . Now we want to sell the same .Mother is a simple housewife (Sr.citizen , nil income ) , what should be the easiest process and income tax treatment for the transaction assuming the deal fetching Rs.30 lacs (single payment ) , I belong to 30 % income tax bracket . We also want to use the money in purchasing new property . Grateful if somebody guide me the steps . regards