Delhi Chief Minister Arvind Kejriwal on Wednesday said he wanted to meet the chief ministers of Haryana and Punjab to find solutions to the air pollution and smog enveloping North India. However, Punjab Chief Minister Amarinder Singh said the Centre must intervene, and an inter-state discussion would not help.

Singh made the statement on Twitter, and it is not clear whether he has officially responded to the letter Kejriwal sent him earlier in the day, requesting for a meeting.

In an exchange of tweets, Kejriwal suggested that the chief ministers could meet to find solutions to the pollution hazard, which they could then propose to the Centre.

In his letter to Singh and Haryana Chief Minister Manohar Lal Khattar, Kejriwal wrote that the states needed to find an economically viable alternative to the disposal of crop stubble, which farmers end up burning.

Singh said on Twitter that the situation was serious, but Punjab was “helpless” as it has no money to compensate farmers for stubble management. Kejriwal again asked him “for time”, but Singh did not say anything about a likely meeting.