Indian Army since long has been lobbying for it's own fleet of attack helicopters so when in 2015 the government signed the deal for 22 Apache attach helicopters the Indian army immediately requested for the control of those 22 helicopters and this became a flash point between IA & IAF for quite some time.
IA argued that attack helicopters were more needed by army than airforce as for anti-tank and ground support roles & that they have to depend on airforce for attach helicopters which reduces their efficiency. IAF countered the army's demand for attack helicopters stating that establishing a mini-airforce within the army will diminish the roles of airforce and that certain operations like search and rescue and for armed patrolling are more airforce centric and so the control of the attack choppers should stay with airforce.
After hearing out both sides the 22 initial choppers were given to IAF.
Now the IAF is set to get its own fleet of Apache attack choppers as MOD has given nod to army for its own fleet of attack helicopters. The army will get some 11 Apache which will come as follow up order on the original deal to acquire 22 Apache attack & 15 Chinook transport helicopters. The deliveries of Airforce's Apache and Chinook will start from 2018 and so we can expect if the follow up order is finalised then IA may get it's attack helicopters from 2020-22 at best.
Army is looking to expand it's aviation arm further and other than these 11 Apache army also has ordered some 60 HAL RUDRA and an order of 114 HAL LCH (link to post) , army wishes to have an attack fleet at all major bases where it has aviation complexes.
Other than this there have been reports that suggest that army might try to acquire additional Apache and may take the count to about 40 which in my opinion is highly unlikely. In my opinion we can buy 3 or so LCH for the cost of one Apache so 40 Apache don't really make sense, yes the number upto 20-22 will be much more realistic but that too is not likely as the follow up order has limit of 11 only.