The Congress's defeats in three Assembly polls in the Hindi heartland have given way to rumblings inside the INDIA opposition bloc, with allies pointing out how the main opposition party's decision to fight the polls on its own led to a division of votes, benefiting the BJP. The Congress lost the polls due to lack of a seat-sharing arrangements with other INDIA members, Trinamool Congress chief Mamata Banerjee said today, stressing that it is a "defeat of the Congress, not the people". Samajwadi Party president Akhilesh Yadav, too, responded to the Congress defeats, suggesting that regional parties must lead the fight against BJP in areas they hold sway in.