Explanation:

A group of residents and environmentalists recently sent an online petition to the expert appraisal committee (EAC) of Union ministry of environment, forest and climate change (MoEFCC) seeking to reconsider the terms of reference (TOR) clearance for the PHESP in the Nilgiris. 
About Sillahalla pumped hydro-electric storage project (PHESP) 

• It is located in the Nilgiris District of the southern Indian state of Tamil Nadu. 
• The upper reservoir is planned in Udhagamandalam & Kundah taluk and lower reservoir is planned in Kundah taluk of the Nilgiris district. 
• The Upper dam is located on Sillahalla stream which is a tributary of Kundah River. 
• The Sillahalla River joins Kundah River about 1.4 km upstream of Kundah Palam dam of existing Kundah Power House – I project. 
• The installed capacity of existing Kundah Power House – I is 60MW and the inflows of Sillahalla, Kanarhalla and other small tributaries are stored in Kundah Palam dam. 
• The proposed Sillahalla project, once implemented, will result in the construction of an upper and a lower reservoir along the Sillahalla stream and also past the existing Kundah Palam dam, and could lead to the direct submergence of 170 hectares of land. Which means it is yet to get clearance.

Hence only statements 1&2 are correct.