"We will ratify the Paris deal in the UN tomorrow. The President has signed it. The Union Cabinet has already approved it," Environment Minister Anil Madhav Dave told reporters on Saturday.
He said Prime Minister Narendra Modi had announced on September 25 that India will ratify it on October 2 on the birth anniversary of Mahatma Gandhi.
"This (decision) was taken after a lot of deliberations and with a view to give the world a messege...India is fast becoming a super power," Mr Dave said.
"Call it international pressure or a sort of competition, this morning European Union has also decided to ratify it, which is a good thing," Mr Dave said.
The Union Cabinet had given its nod to ratifying the Paris climate deal on September 28, days after PM Modi announced this at BJP's National Council meet in Kozhikode. The move is expected to give momentum to the implementation of measures at the international level to control global warming.
So far, 61 countries have deposited their instruments of ratification, acceptance or approval accounting in total for 47.79 per cent of the total global greenhouse gas emissions.
India's decision to ratify the agreement will take the number of cumulative level of emission of countries that have ratified the agreement so far to 51.89 per cent as its total emissions is 4.1 per cent of the global emissions.
Mr Dave said after EU has decided to ratify it, the total emissions amongst countries which have ratified the agreement will go up to 61 per cent.
Paris Agreement was adopted by 185 nations last year on December 12 and India signed it in New York on April 22 this year. A total of 191 countries have signed the Paris Agreement so far.