A possible concise summary is:
A woman named Shikha accuses various people of stealing her newborn baby from a hospital, but none of them are the real culprit. The police officers Karishma Singh and Haseena Malik investigate the case and find out that the thief disguised as a nurse and escaped with the baby using Shikha's identity papers. The officers promise to find the baby and catch the thief, but they also have to deal with their personal conflicts and a protest by the hospital staff.
Here are the key facts extracted from the text:
1. A baby was stolen from a hospital in Lucknow.
2. The mother of the baby, Shikha, lost her mental balance and blamed a ward boy and her mother-in-law for the theft.
3. The police officers Karishma Singh and Haseena Malik were investigating the case and had a post swap experiment by their DSP Anubhav.
4. The thief disguised as a nurse and took Shikha's identity papers to escape with the baby.
5. The security in-charge of the hospital, Shukla, claimed that the thief and the baby were still inside the hospital.
6. The police checked the CCTV footage and the fingerprints to find clues about the thief.
7. The hospital staff and the ward boy protested against Karishma Singh's physical assault on him.
8. The DSP demoted Karishma Singh to SI and asked both officers to write down three negative points about each other.
9. Billu, a spy who worked for the all-women police station, helped the police with his theories.
10. The police promised Shikha and her husband Shekhar to bring back their baby safe and sound.