Telugu superstar Allu Arjun's younger brother Allu Sirish is going to tie the knot with his longtime girlfriend Nayanika Reddy on March 6. Ahead of the big day, the Allu family hosted a grand pre-wedding bash on March 2 in Hyderabad which was graced by several Telugu celebrities including Nagarjuna, Ram Charan, Nani and Rana Daggubati.