There are many actors/actress in Bollywood who have siblings, there isn't exact number, so there are famous siblings who rules bollywood film industry and non bollywood siblings.
⭐Bollywood Half Siblings
Arjun Kapoor and Jhanvi Kapoor
Shahid Kapoor and Ishaan Khatter
•Deol family
Via Prakash Kaur:- Sunny Deol Bobby Deol, Ajeita Deol, Vijeta Deol
Via Hema Malini:- Esha Deol and Ahana Deol
List of real siblings in bollywood
•Khan Family
Salman Khan-Arbaaz Khan-Sohail Khan
Aamir Khan siblings:- Faisal Khan, Nikhat Khan Farhat Khan
Shahrukh Khan and Lalaruk Khan
Late actor Irfan Khan Siblings:-Ruksana Begum, Imran Khan and Salman Khan
Saif Ali Khan Siblings:- Soha Ali Khan, Saba Ali Khan
Sara Ali Khan and Ibrahim Ali Khan
•Kapoor Family
Boney Kapoor-Anil Kapoor-Sanjay Kapoor
Rishi Kapoor:- Randhir Kapoor, Rajiv Kapoor, Ritu Nanda and Reema Kapoor
Sonam Kapoor:- Rhea Kapoor, Harsh Vardhan Kapoor
Karishma Kapoor and Kareena Kapoor
Ranbir Kapoor and Riddhima Kapoor Sahni
Shakti Kapoor Siblings: Rummy Kapoor, Renu Kapoor, Parvin Kapoor
Shraddha Kapoor and Siddhant Kapoor
Tushar Kapoor and Ekta Kapoor
Dharmendra and Ajith Deol
•Bachchan family
Amitabh Bachchan and Ajitabh Bachchan
Abhishek and Shwetha Bachchan
•Shroff Family
Jackie Shroff and Hemant Shroff
Tiger Shroff and Krishna Shroff
•Chopra Family
Priyanka Chopra and Siddharth Chopra
Parineeti Chopra siblings:-Sahaj Chopra Shivang Chopra
•Khanna Family:
Vinod Khanna:- Siblings: Pramod Khanna, Poonam Kapur, Neena Chandhok, Beena Walia
Akshaye Khanna siblings:-Rahul Khanna, Shraddha Khanna, Sakshi Khanna
•Malhotra Family
Sidharth Malhotra and Harshad Malhotra
Sanya Malhotra and Shagun Malhotra
•Shetty Family:
Suniel Shetty Siblings: Sujata Shetty, Sunita Tarun Pratap
Athiya Shetty and Ahaan Shetty
Shilpa Shetty and Shamita Shetty
Sanjay Dutt Siblings:- Namrata Dutt, Priya Dutt
Akshay Kumar and Alka Bhatia
Ajay Devgan siblings:- Neelam Devgan, kavita Devgan
John Abraham siblings:- Alan Abraham, Susy Abraham
Arjun Rampal and Komal Rampal
Raveenaa Tandon and Rajiv Tandon
Twinkle khanna and Rinke Khanna
Madhuri Dixit siblings:- Ajit Dixi, Rupa Dixit, Bharati Dixit
Kajol and Tanishaa
Rani Mukherjee and Raja Mukherjee
Preity Zinta siblings:- Manish Zinta, Deepanker Zinta
Sushmita Sen siblings:- Rajeev Sen and Neelam Sen
Aishwarya Rai and Aditya Rai
Lara Dutta Siblings: Cheryl Dutta, Sabrina Dutta
Malaika Arora and Amrita Arora
Kangana Ranaut siblings:- Rangoli Ranaut, Akshit Ranaut
Tabu And Farah Naaz
Vivek Oberoi and Meghna Oberoi
Alia Bhatt Siblings: Pooja Bhatt, Shaheen Bhatt, Rahul Bhatt
Farhan Akhtar and Zoya Akhtar
Hritik Roshan and Sunaina Roshan
Emraan Hashmi and Calvin Hashmi
Bipasha Basu siblings:- Bidisha Basu, Bijoyeta Basu
Ayushman Khurana and Aparkshakti Khurana
Aditya Roy Kapur:- Siddharth Roy Kapur and Kunaal Roy Kapur
Ranveer Singh and Ritika Bhavnani
Mouni Roy and Mukhar Roy
Late actor Sushant Singh Rajput Siblings:- Shweta Singh Kirti, Mitu Singh, Priyanka Singh, Neetu Singh
Deepika Padukone and Anisha Padukone
Ayesha Takia and Natasha Takia
Varun Dhawan and Rohit Dhawan
Sonakshi Sinha Siblings:- Luv Sinha and Khush Sinha
Vicky Kaushal and Sunny Kaushal
Anushka Sharma and Karnesh Sharma
Tiger Shroff and Krishna Shroff
Disha Patani and Khushboo Patani
Kriti Sanon and Nupur Sanon
Kartik Aryan and Kritika Tiwari.
Kiara Advani siblings: - Ishita Advani and Mishaal Advani
Suraj Pancholi and Sana Pancholi
Ananya Pandey and Rysa Pandey
Tara Sutaria and Pia Sutaria
Bhumi Pednekar and Samiksha Pednekar
Kriti Kharbanda siblings: Ishita Kharbanda, Jaiwardhan Kharbanda
Pulkit Samrat and Ullas Samrat
Harshvardhan Rane and Rohini Rane
Riteish Deshmukh siblings:-Dhiraj Deshmukh, Amit Deshmukh
Randeep Hooda Siblings: Sandeep Hooda, Anjali Hooda Sangwan
Yami Gautam siblings:- Ojas Gautham and Surilie Gautham
Katrina Kaif and Isabelle Kaif
Jacqueline Fernandez siblings:- Warren Fernandez, Geraldine Walker, Ryan Fernandez
Prachi Desai and Esha Desai
Radhika Apte and Ketan Apte
Daisy Shah and Deepali Shah
Aayush Sharma and Aashray Sharma
Esha Gupta Siblings:- Karan Gupta and Neha Gupta
⭐Other Bollywood actress siblings who were working in South Indian film industry
Late actress Sridevi Siblings: Srilatha Yanger, Satish Yanger
Tamanna Bhatia and Anand Bhatia
Kajal Agarwal and Nisha Agarwal
Genelia D Souza and Nigel D Souza
Ileana D cruz:- Siblings Farrah D Cruz, Eileen D cruz, Rhys D cruz
Rakul Preet Singh and Aman Singh
Mrunal Thakur and Locha Thakur
Sonal Chauhan and Himani Chauhan
Neha Sharma and Aisha Sharma
Shriya Saran and Abhiroop Saran
Tapsee Panu and Shagun Panu