Yes you can claim ITC on GST paid towards your FACTORY RENT. As per the Provision of Section 16(1) of the CGST Act 2017, ITC on input, input services and Capital Goods used in the course of or furtherance of Business can be claimed, provided that all the "FOUR CONDITIONS" as laid down u/s 16(2) of the CGST Act 2017 has been satisfied.