CESL signed Pact with CSC SPV

Current Context: The Convergence Energy Services Limited (CESL) has signed a pact with CSC e-Governance Services India Limited, a Special Purpose Vehicle (CSC SPV).

• The pact was signed to create demand aggregation for electric mobility, solar, energy efficiency solutions and other initiatives of CESL.
• Under the pact, both the entities will aggregate demand and will conduct feasibility studies for projects related to renewables (decentralized solar), energy efficiency (solar micro-grids, solar-based agricultural pump-sets), e-mobility (EV charging stations, battery charging stations and battery swapping stations), Battery Energy Storage Systems, etc.
• Through this partnership, the initiatives of CESL will reach across the country and will have new and innovative business models.
• The partnership will also help to support India’s plan of climate action and explore green energy initiatives.
• They will jointly implement renewables, electric mobility, and other energy efficiency solutions in the country.
• Static Part: 
• CESL: It is a wholly-owned subsidiary of Energy Efficiency Services Limited (EESL).

Question: 

Q.1 Which firm signed a pact with CSC e-Governance Services India Limited, a Special Purpose Vehicle (CSC SPV) to create demand aggregation for electric mobility, solar and energy efficiency solutions?
a. Tata Power
b. Adani Power
c. Torrent Power
d. Convergence Energy Services Limited (CESL)