As you asking I am telling Loni city population info of the year in 2011 as per Loni Municipal Corporation data sources:

Loni City Total Male Female
City Population 516,082 275,025 241,057
Literates 314,184 186,020 128,164
Children (0-6) 80,547 42,814 37,733
Average Literacy (%) 72.14 % 80.11 % 63.03 %
Sexratio 876
Child Sexratio 881

Population data for other Municipal Corporation in UP
Rank City District Population (2011)
1 Kanpur Kanpur Nagar 2,920,067
2 Lucknow Lucknow District 2,901,474
3 Ghaziabad Ghaziabad 2,358,525
3 Agra Agra District 1,746,467
4 Varanasi Varanasi District 1,435,113
5 Meerut Meerut District 1,424,908
6 Allahabad Allahabad District 1,216,719
8 Bareilly Bareilly District 1,200,933
9 Aligarh Aligarh District 909,559
10 Moradabad Moradabad District 889,810
11 Saharanpur Saharanpur District 703,345
12 Gorakhpur Gorakhpur District 692,519
13 Faizabad Faizabad District 689,985
14 Firozabad Firozabad District 603,797
15 Jhansi Jhansi District 507,293