Swaraj, along with senior BJP leader Uma Bhrati, was here today to participate in the "Ganga Bachao, Desh Bachao" campaign.
She said the Uttarakhand tragedy was a outcome of playing with the environment.
Attacking SP supremo Mulayam Singh Yadav over his remarks on Muslims, Uma Bhrati said Muslims were most prosperous in Gujarat.
On SP supremo's statement on Third Front having an edge in the Lok Sabha elections, Bharti said that "he (Mulayam) has lost his mental balance and needs treatment".