World War II cemetery and memorial, Chennai

British India Army.
Second World War (1939–1945),  was a crucial period for India which was in the middle of the freedom struggle against the British. India was under the United Kingdom, with the British controlling territories in India, including over five hundred autonomous Princely States. British India, having officially declared war on Nazi Germany in September 1939, as part of the Allied Nations, had sent over two and a half million soldiers to fight under British command against the Axis powers. Besides,  several rich Indian Princely States made large donations to support the Allied campaign during the War against formidable Germany and its allies. India also made available bases and other facilities  for American operations in support of China in the China Burma India sector. There were threats from the Japanese through Burna and Singapore was vulnerable.
in the war, Indian soldiers and officers fought with distinction across the globe - in Europe against  Nazi Germany, in North Africa against Germany and Italy, and in the South Asian region  against the Japanese  in Burma. Indians helped the British  liberate British colonies such as Singapore and Hong Kong after the Japanese surrender in August 1945.
It is estimated that more than 87,000 Indian soldiers (inclusive of  those from present  day Pakistan, Bangladesh and Nepal),  died in the World War II. Field Marshal Sir Claude Auchinleck, Commander-in-Chief of the Indian Army from 1942 said, "The British couldn't have come through both wars  I and II if they hadn't had the Indian Army."
British India.Indian soldiers WWII Quora
After the war, the British were supposed to grant freedom to India and only on that condition INC (congress part) leaders and others agreed to fight under the Union Jack.. Alas! the British went back on their word; With no solution on hand, Congress announced a "Quit India" campaign in August 1942. This breach of trust by the British government got a bad rap for them and the Indian people and leaders became infuriated. After several upheavals and testing times, India became a free country in August, 1947. A united India became fragmented into India and Pakistan. In the wake, Britain's prestige as a powerful imperial power had begun to go down hill.
The war cemetery and war victory memorial in Chennai city bear testimony to the scarifies made by the brave Indian soldiers along with the Europeans in the crucial WWII.

 Madras War Cemetery:

Madras War Cemetery, Chennai, TN.MakeMyTrip
Madras War Cemetery, located on Mount-Poonamallee High Road, Nandambakkam,  about 5 km from the Chennai airport and  one km from St. Thomas Mount, is a  public  Memorial 1914–1918. Referred to as a "Lawn Cemetery, the memorial  is neither a burial ground nor does it have  any buried dead-bodies of soldiers and others. It has just  plaques with the names of numerous, Indian, Australian, British, European, west African soldiers, et al  who  lost their lives  in  WWII  with the inscription "Their name liveth for evermore". It carries  the names of more than 856  servicemen who  lie in many civil and cantonment cemeteries across India where it is very difficult to  maintain the graves, which in many cases are in ruin. To maintain the graves  in perpetuity it was built. The list includes numerous  Commonwealth soldiers and  New Zealanders as well.   

It was established in 1952 by the Imperial War Graves Commission, now known as the Commonwealth War Graves Commission (CWGC), to pay tribute to the men and women who sacrificed their lives in World War II. It is being maintained by the CWGC in partnership with Government of India., Chennai

Victory War Memorial, Chennai:

The Victory War

 Victory War Memorial, earlier known as  the Cupid's bow, is a public memorial  located to the south of Fort St. George   in Chennai, India. It was built to commemorate the victory of the Allied Armies during World War I (1914–1918). Subsequently when Germany and its allies were defeated by the UK and its allies in WWII, it  became  a victory war memorial for World War II (1939–1945), erected in the memory of those from the Madras presidency who gave up  their lives defending the interest of British India. Subsequent additions include  inscriptions of 1948 Kashmir aggression by Pakistan, 1962 War with China and the Indo-Pakistan War of early 1970s. This memorial  marks the beginning of the 13-km-long  stretch of Marina beach. The place, where this circular structure made of marble and rock stands, formerly housed the coastal belfry.