I have sold in December 2010 for rs 50 lakhs a flat that i had purchased in April 1989 for 5 lakhs. I own two other residential flats. I have already paid from Jan 2010 onwards , installments amounting to approx 45 lakhs for a new flat . The total cost of the new flat, which will be ready in mid 2011, will amount to 70 lakhs. I want to know how I can adjust the profits from the sale of the old flat against the new one so as to avoid capital gains tax. Will it be necessary for me to invest in capital tax bonds or can i offset against new flat. Thank you