BB had made the pairs in the 'entry to main house' task in such a way that the relevant (content giving) contestants get the entry immediately
Karan- Teja ( Beera bond)
Prateik- Jai ( Best friend bond)
Akasa- Simba ( Besties Bf bond)
Shamita- Vishal ( Ott acquaintance bond)
Umer- Afsana( Beera' s henchman bond)
You can clearly see that one of the contestant from each jodi is close to Nishant and it was probably BB's plan to work out 5 rounds and then eliminate Ieshan- Meisha on the pretext that they were not be able to get entry into the main house and jungle is now getting dismantled. Jai ruined this scheme with his stupid usool and aadarsh.
BB then had to ' sabak- sikhao' Jai and pull everyone including ' pagal-premies' inside.