The saffron party and its allies Apna Dal (Soneylal Patel) and Suheldev Bhartiya Samaj Party (SBSP) in the process pushed rivals SP-Congress combine and the BSP far behind.
The fledgling SP-Congress coalition was ahead in 69 seats (SP in 58 and Congress in 11), while BSP trailed far behind with leads in only 19 places.
BJP on its own was leading in 276 seats, while Apna Dal (S) was ahead in nine and SBSP in five.
Ameeta Singh (Cong), the present wife of Sanjay Sinh was also trailing.
In Noida, Home Minister Rajnath Singh's son Pankaj Singh was leading.