TDS and TCS applicable on solar plant installation

Dear Sir

We are planning to install solar plant at out factory. the cost 1.48 Cr 

70% solar system GST 12% applicable

30% Infrastructure and labour GST 18% applicable 

My question 

TDS Applicable or not 

IF yes which amount full or only 30% labour and Which category 94J or 94C 

Purchase more then 50 Lacs TCS applicable or not