Glimpses of IAF Chinook Ch-4/F(1) undertaking high altitude operations in Siachen on Wednesday. (UNI) By Daily Excelsior - May 28, 2020 Share FacebookTwitterWhatsAppPinterestLinkedinTelegramEmailTumblrReddItPrintKoo Glimpses of IAF Chinook Ch-4/F(1) undertaking high altitude operations in Siachen on Wednesday. (UNI) Glimpses of IAF Chinook Ch-4/F(1) undertaking high altitude operations in Siachen on Wednesday. (UNI) Follow our WhatsApp channel