Dear Rameshji,
I was in Doha for past 5 years. Now with my husband in Ras Al Khaimah.
I was not a devotee of sai at that time. I know some people who were attending bhajans. I shall give u their contact number.
Mr. S.S. Kamat (Tel: 4416082 Ext. 303)
Veni Maroly (Mob: 5838143)
I dont know about Sai Group in Al Khor. They will be able to guide u on this.
There is pooja hall (Dharmalaya) in Doha near Mall roundabout.
Jai Sai Ram
Prajna