Indian Muslim Archives@Rustum_0
Hindus owned nothing in the first place to make any charity. In fact, around 38% of India (1,250,727 km²) was Indian Muslim sovereign landmass, which was given to Hindus in charity by the British.
Here is a rough estimate (#read_in_full):
The Nazimate of Bengal, Bihar and Orissa (≈431,608 Km²), with its power base in Murshidabad (India), extended over modern West Bengal, Bihar, Jharkhand, Tripura, the districts of Kokrajhar, Dhubri, Chirang, Bongaigaon, Goalpara, South Salmara-Mankachar in Assam, and present-day Bangladesh. In 1947, the British transferred ≈283,148 km² to the Indian Republic (Hindu dominated) and ≈148,460 km² to the Pakistani Republic (dominated by Sindhu Muslims).
The Nawabate of Awadh (≈152,923 Km²) covered most of Uttar Pradesh except Mirzapur, Chitrakoot, Jhansi, Agra, Aligarh, Meerut, and Saharanpur divisions, and was transferred to India in 1947.
The Nawabate of Shamsher Bahadur (≈32,269 Km²) based in Banda, the Khudadad Sarkar of Tipu Sahib (≈253,800 Km²), and the Nawabate of Carnatic (≈44,700 Km²) were also integrated into India in 1947. The Northern Sarkar and Guntoor Sarkar of the Nizamate of Hyderabad (≈78,000 Km²), along with the Nizam's gains in Ahmadnagar and Bijapur (≈12,940 Km²) in War with Peshwa, were transferred to the Indian Republic in 1947. Ali Rajas of Arakkal held the Lakshadweep Islands (32.62 Km²), which were transferred to the Indian Republic by the British in 1947.
Sheikh Imad-ud-din (born in Hoshiarpur, India) had seized and established his overlordship over Himachal and Jammu-Kashmir, with power base in Srinagar (Jammu, India), covering ≈111,211 Km². The British removed his overlordship. Today, the Himachal (55,673 Km²) and Jammu & Kashmir UT (42,241 Km²) are parts of the Indian Republic, while Pakistan holds 13,297 Km².
From 1856, the Indian Muslims ruled ≈295,000 Km² in form of the Princely States, until 1947, after which these territories were integrated into the Indian Republic within a year. In total:
The Indian Muslims Lost Amal (Rule) Over ≈1,412,484 Km² due to the British colonialism.