With Chahbahar in operation your utility as transit for India will be over. We are not looking at commercial gains from Chahbahar and Afghanistan. Commercial viability for Chahbahar is from East Europe and other Central Asian nations. India has already subsidised air link from Afghanistan. For Afghanistan India will be an alternative to Pakistan so that their dependence on Pak can be reduced.
Actually Pakistan is having border dispute with both Republic of India and Islamic Republic of Afghanistan. Founding members of Republic of India and Afghanistan were against the partition.
The root cause of this extraversion lays in the Pakistani feeling of vulnerability that crystallised vis-à-vis India as early as 1947 - a sentiment that was reinforced by the then hostile attitude of Afghanistan. Subjected to encirclement, Pakistan looked immediately for external support.
In the 1940s, Kabul had asked the British to let “their” Pasthun tribes to decide whether they wanted to accede to Afghanistan or to become independent. Pakistan was not even an option. After the creation of Pakistan, Afghanistan refused to recognise the Durand Line as an international border.
Diplomatically, the Pakistano-Chinese rapprochement found expression in the way Karachi spared Peking at the UN during the Korean War.
when China attacked India in 1962. Not only did this war reconfirm that Peking and Islamabad had a common enemy, but afterwards both countries, in December 1962, swapped some territory in Kashmir - something India resented a lot.
As early as 1967, China committed itself to deliver one hundred tanks and 80 MIGs to Pakistan. In 1982, Chinese weapons systems made up 75% of Pakistans tanks and 65% of its air force. In 2005 China provided Pakistan with four naval frigates, and today, China and Pakistan are jointly producing the J-17 Thunder fighter. In the same vein, China helped Pakistan to develop its nuclear bomb.
By the mid-1980s, Pakistan had acquired sensitive technologies to build it bomb from China. During the folowing decade, Beijing helped Islamabad to build a 40 MW reactor which could be used to provide plutonium for its weapons program
Iran will never allow India a naval base anywhere near its territory. India is firmly in bed with the USA and this relationship is going to become a problem for both India and Iran in the future. Israel wants a war with Iran. Which side will India come down on if that happens? India will never be able to stay neutral in that situation.
Russian Federation is already there inside Iran and this is even one more reason that Indian Establishment is moving out of Chahbahar port.
Iran is bordering Armenia which is member of CSTO and Russian Federation troops are based in Armenia .