Save as otherwise provided in this Act, notwithstanding anything contained in any settlement, kaul, grant, sanad or order, any judgement, order or decree of a Court or Tribunal or in any law or instrument for the time being in force, on the date of commencement of this Act, all subsisting rights to mines and minerals vesting in any alienee in any land shall pass from such person to and vest in the State Government, free of any encumbrances :
Provided that, the rights of any lessee holding on lease the sub-soil rights on the date of commencement of this Act, either from alienee or from Government, shall not be affected by this section except that on and from the said date if he is a lesses holding from alienee he shall be deemed to be a lessee holding from Government, and all the obligations to the alienee shall be deemed to have passed on to Government.