Aditi Rao Hydari, Swara Bhaskar, Kunal Kohli, Ritesh Sidhwani, Cyrus Sahukar, Sonu Nigam, Anurag Kashyap, Sreesanth, Nimrat Kaur, Manish Malhotra, Ayushmann Khurana and Siddhart Kapoor among others were present at Richa Chaddha's Birthday Bash